20 Matching Annotations
  1. Last 7 days
  2. onlinelibrary-wiley-com.ezproxy.lib.ryerson.ca onlinelibrary-wiley-com.ezproxy.lib.ryerson.ca
    Clinical and molecular features of familial and sporadic cases of von Hippel-Lindau disease from Mexico
    3
    1. ClingenBaseline 05 Nov 2026
      The proband (III-4) was a 28-year-old male who consulted because of a history of VHL disease in his family. The mother (II-1) developed cerebellar, medullar and bilateral retinal HBs; two maternal aunts (II-2 and II-3) were affected by retinal and CNS HBs and unspecified renal tumours, whereas his grandfather (I-2) had unspecified abdominal tumours. All these relatives died in their early 30s (Table 1). Magnetic resonance (MR) imaging of brain and spine was performed in this subject demonstrating cerebellar HB. Ophthalmologic examination revealed VA of 6/6 in both eyes, and IOP of 14 mmHg in the right eye and of 18 mmHg in the left eye. No anomalies were found at biomicroscopic inspection; funduscopic evaluation of the right eye showed a well defined orange-red mass corresponding to a peripheral retinal HB of approximately 1 disc diameter associated with a prominent feeding artery and to a draining vein. FAG demonstrated hyperfluorescence of this retinal angioma as well as enlargement and tortuosity of retinal blood vessels.

      PatientID: III-4 (Proband)

      KindredID: 1

      Case: M, 28Y0M, Mexican

      DiseaseAssertion: VHL

      FamilyInfo: Family composed of six affected individuals and three diseased subjects (III-2, III-3, III-4) were studied. III-4 (proband) presented with a CNS hemangioblastoma and a retinal hemangioblastoma. The mother (II-1) developed cerebellar, medullar and bilateral retinal HBs; two maternal aunts (II-2 and II-3) were affected by retinal and CNS HBs and unspecified renal tumors, whereas his grandfather (I-2) had unspecified abdominal tumors. All these relatives died in their early 30s. A 35-year-old sister (III-2) demonstrated cerebellar HB, right eye retinal HB and renal cell carcinoma, whereas a 32-year-old brother (III-3) presented with cerebellar HB, right eye retinal HB, renal cell carcinoma and pheochromocytoma. A mutation-carrier nephew (IV-2) presented only atrophy of the retinal pigment epithelium. All of these family members were found to have the R82P (c.245G>C) germline VHL variant. Eighteen additional healthy relatives were analyzed and tested negative for the mutation.

      CohortInfo: Two families and one apparently non-familial case were studied at the Institute of Ophthalmology ‘Conde de Valenciana’ (Mexico City, Mexico).

      CasePresentingHPOs: HP:0010797; HP:0009711 (Hemangioblastoma, Retinal capillary hemangioma)

      CaseHPOFreeText: MRI of brain and spine was performed in this subject demonstrating cerebellar HB. Funduscopic evaluation of the right eye showed a well defined orange-red mass corresponding to a peripheral retinal HB of approximately 1 disc diameter associated with a prominent feeding artery and to a draining vein. FAG demonstrated hyperfluorescence of this retinal angioma as well as enlargement and tortuosity of retinal blood vessels.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Family pedigree (Figure 1(a))

      Variant: p.R82P (c.245G>C)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 526675, https://www.ncbi.nlm.nih.gov/clinvar/variation/526675/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transversion

      CivicName: R82P (c.245G>C)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican DiseaseEntity:VHL DiseaseEntity:hemangioblastoma DiseaseEntity:retinalcapillaryhemangioma AgeOfPresentation:hemangioblastoma:28 AgeOfPresentation:retinalcapillaryhemangioma:28 Mutation:Germline AssumedRefSeq:NM_000551.3 cDNAposition:245 ProteinPosition:82 AminoAcidChange:ARGtoPRO ClinVarID:526675 ClinVarID:Yes MutationType:missense_variant;transversion CivicName:R82P(c.245G>C) FamilyPedigree Familial inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
    2. ClingenBaseline 01 Nov 2026
      A mutation-carrier nephew (IV-2) aged 4 years presented only atrophy of the retinal pigment epithelium.

      PatientID: IV-2

      KindredID: 1

      Case: M, 4Y0M, Mexican

      DiseaseAssertion: VHL

      FamilyInfo: Family composed of six affected individuals and three diseased subjects (III-2, III-3, III-4) were studied. III-4 (proband) presented with a CNS hemangioblastoma and a retinal hemangioblastoma. The mother (II-1) developed cerebellar, medullar and bilateral retinal HBs; two maternal aunts (II-2 and II-3) were affected by retinal and CNS HBs and unspecified renal tumors, whereas his grandfather (I-2) had unspecified abdominal tumors. All these relatives died in their early 30s. A 35-year-old sister (III-2) demonstrated cerebellar HB, right eye retinal HB and renal cell carcinoma, whereas a 32-year-old brother (III-3) presented with cerebellar HB, right eye retinal HB, renal cell carcinoma and pheochromocytoma. A mutation-carrier nephew (IV-2) presented only atrophy of the retinal pigment epithelium. All of these family members were found to have the R82P (c.245G>C) germline VHL variant. Eighteen additional healthy relatives were analyzed and tested negative for the mutation.

      CohortInfo: Two families and one apparently non-familial case were studied at the Institute of Ophthalmology ‘Conde de Valenciana’ (Mexico City, Mexico).

      CasePresentingHPOs: HP:0007722 (Retinal pigment epithelial atrophy)

      CaseHPOFreeText: Atrophy of the retinal pigment epithelium.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Family pedigree (Figure 1 (a))

      Variant: p.R82P (c.245G>C)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 526675, https://www.ncbi.nlm.nih.gov/clinvar/variation/526675/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transversion

      CivicName: R82P (c.245G>C)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican DiseaseEntity:VHL DiseaseEntity:retinalpigmentepithelialatrophy Mutation:Germline AssumedRefSeq:NM_000551.3 cDNAposition:245 ProteinPosition:82 AminoAcidChange:ARGtoPRO ClinVarID:526675 ClinVarID:Yes MutationType:missense_variant;transversion CivicName:R82P(c.245G>C) FamilyPedigree Familial inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
    3. ClingenBaseline 31 Oct 2026
      Her 36-year-old sister (IV-7) had a spinal cord HB (Fig. 2f). None of them presented ocular symptoms.

      PatientID: IV-7

      KindredID: 2

      Case: F, 36Y0M, Mexican

      DiseaseAssertion: VHL

      FamilyInfo: This family included three affected individuals and two of them were studied. The proband (IV-6) was a 23-year-old woman who was previously diagnosed with VHL disease and had a tumor in the cerebellum; VA and IOP were normal and no ocular manifestations of the disorder were recorded at examination. Her 36-year-old sister (IV-7) had a spinal cord HB. None of them presented ocular symptoms. Remarkably, her 55-year-old mother (III-8) did not exhibit any clinical manifestation of the disease. Three of her maternal uncles (III-1, III-2 and III-3) presented with cerebellar HB and one of them also had a renal cell carcinoma; In addition, her maternal grandmother (II-2) and her maternal grandmother's sister (II-3) had unspecified CNS tumors.

      CohortInfo: Two families and one apparently non-familial case were studied at the Institute of Ophthalmology ‘Conde de Valenciana’ (Mexico City, Mexico).

      CasePresentingHPOs: HP:0009713 (Spinal hemangioblastoma)

      CaseHPOFreeText: Spinal cord hemangioblastoma.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Family pedigree (Figure 1 (b))

      Variant: p.L89P (c.266T>C)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 182979, https://www.ncbi.nlm.nih.gov/clinvar/variation/182979/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transition

      CivicName: L89P (c.266T>C)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican DiseaseEntity:VHL DiseaseEntity:spinalhemangioblastoma Mutation:Germline AssumedRefSeq:NM_000551.3 cDNAposition:266 ProteinPosition:89 AminoAcidChange:LEUtoPRO ClinVarID:182979 ClinVarID:Yes MutationType:missense_variant;transition CivicName:L89P(c.266T>C) FamilyPedigree Familial inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
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    onlinelibrary-wiley-com.ezproxy.lib.ryerson.ca/doi/10.1111/j.1442-9071.2010.02241.x
  3. pubmed.ncbi.nlm.nih.gov pubmed.ncbi.nlm.nih.gov
    Von Hippel-Lindau disease germline mutations in Mexican patients with cerebellar hemangioblastoma
    8
    1. ClingenBaseline 05 Nov 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 26

      KindredID: F

      Case: Sex Unknown, 30Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: No family history of VHL or pheochromocytoma

      CasePresentingHPOs: HP:0006880; HP:0000107; HP:0005584 (cerebellar hemangioblastoma, renal cyst, renal cell carcinoma)

      CaseHPOFreeText: Symptomatic by 30Y, clinically manifested as 1 recurrent cerebellar hemangioblastoma, renal cyst, bilateral renal cell carcinoma

      CaseNotHPOs: HP:0002666 (pheochromocytoma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270

      SupplementalData: N/A

      Variant: p.P86S (c.256C>T)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: 178692 https://www.ncbi.nlm.nih.gov/clinvar/variation/178692/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant; transition

      CivicName: P86S(c.256C>T)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:cerebellarhemangioblastoma DiseaseEntity:renalcyst DiseaseEntity:renalcellcarcinoma CivicName:P86S(c.256C>T) cDNAposition:256 AminoAcidChange:PROtoSER MutationType:missense_variant;transition ProteinPosition:86 ClinVarID:178692 ClinVarID:Yes NonFamilial inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
    2. ClingenBaseline 03 Nov 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 17

      KindredID: C

      Case: Sex Unknown, 13Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: asymptomatic

      FamilyInfo: At least 13 members in this family presented with the mutation. 5 were asymptomatic (ages 9, 12, 13, 17, and 29Y). Other family manifestations include: cerebellar, spinal, retinal HBs, pancreatic, hepatic, suprarenal and kidney cysts, epididymal cystadenoma, and RCC. Fig 1 displays family pedigree.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Patient was asymptomatic at the time, likely due to young age

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.T100Nfs*32 (c.298dupA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2573129737 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.298dupA

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: T100Nfs*32 (c.298dupA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Mutation:Germline Ethnicity:Mexican RefSeq:AF010238.1 ClinVarID:N/A MutationType:plus_1_frameshift_variant Familial FamilyPedigree DiseaseEntity:asymptomatic ExperimentalAssay ProteinPosition:100 CAID:CA2573129737 CivicName:T100Nfs(c.298dupA) cDNAposition:298 AminoAcidChange:THRtoASN MutationType:duplication inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    3. ClingenBaseline 02 Nov 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 4

      KindredID: A

      Case: Sex Unknown, 11Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: asymptomatic

      FamilyInfo: three other symptomatic members of family A had this mutation. The symptomatic individuals all had cerebellar hemangioblastomas, as well as spinal hemangioblastomas and renal cysts.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: asymptomatic at 11Y, could be due to patient’s young age

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270

      SupplementalData: N/A

      Variant: p.F76del (c.227_229del)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: 223166 https://www.ncbi.nlm.nih.gov/clinvar/variation/223166/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: inframe_deletion

      CivicName: F76del (c.227_229del)

      MultipleGeneVariants: N/A
      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:asymptomatic MutationType:inframe_deletion ProteinPosition:76 cDNAposition:227 CivicName:F76del(c.227_229del) ClinVarID:223166 ClinVarID:Yes Familial inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
    4. ClingenBaseline 02 Nov 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 25

      KindredID: E

      Case: Sex Unknown, 32Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: No family history discussed

      CasePresentingHPOs: HP:0010797; HP:0000107; HP:0001737 (hemangioblastoma, renal cyst, pancreatic cysts)

      CaseHPOFreeText: Symptomatic by 32Y, clinically manifested as 3 cerebellar hemangioblastomas, pancreatic and renal cyst

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270

      SupplementalData: N/A

      Variant: p.R161* (c.481C>T)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: 2217 https://www.ncbi.nlm.nih.gov/clinvar/variation/2217/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: stop_gained

      CivicName: R161* (c.481C>T)

      MultipleGeneVariants: N/A
      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:hemangioblastoma DiseaseEntity:renalcyst DiseaseEntity:pancreaticcysts CivicName:R161*(c.481C>T) cDNAposition:481 ProteinPosition:161 AminoAcidChange:ARGtoTER ClinVarID:2217 ClinVarID:Yes NonFamilial MutationType:stop_gained inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
    5. ClingenBaseline 01 Nov 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 24

      KindredID: D

      Case: Sex Unknown, 29Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: The family history of this patient is negative for the disease; one possibility is that she carries a de novo mutation, although the possibility of non-paternity could not be ruled out. Other affected individuals in Family D died at an early age

      CasePresentingHPOs: HP:0010797; HP:0009711; HP:0000107; HP:0001737; HP:0005584; HP:0002666 (hemangioblastoma, retinal capillary hemangioma, renal cyst, pancreatic cysts, renal cell carcinoma, pheochromocytoma)

      CaseHPOFreeText: Symptomatic before 29Y, clinically manifested as 2 cerebellar hemangioblastomas, bilateral retinal angiomas, multiple pancreatic & kidney cysts, unilateral RCC, pheochromocytoma, and broad ligament cystadenoma

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270

      SupplementalData: N/A

      Variant: p.D121G (c.362A>G)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: 223200 https://www.ncbi.nlm.nih.gov/clinvar/variation/223200/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transition

      CivicName: D121G (c.362A>G)

      MultipleGeneVariants: N/A
      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:hemangioblastoma DiseaseEntity:retinalcapillaryhemangioma DiseaseEntity:renalcyst DiseaseEntity:pancreaticcysts DiseaseEntity:renalcellcarcinoma DiseaseEntity:pheochromocytoma ClinVarID:223200 ClinVarID:Yes NonFamilial ProteinPosition:121 CivicName:D121G(c.362A>G) cDNAposition:362 AminoAcidChange:ASPtoGLY MutationType:missense_variant;transition inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
    6. ClingenBaseline 01 Nov 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 7

      KindredID: B

      Case: Sex Unknown, 26Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: 6 members in this family presented with the mutation. 2 were asymptomatic (ages 2 and 7Y). Other family manifestations include: cerebellar, spinal, bulbar, retinal HBs, pancreatic and kidney cysts, and RCC.

      CasePresentingHPOs: HP:0006880; HP:0009711; HP:0001737; HP:0000107;H P:0005584 (cerebellar hemangioblastoma, retinal capillary hemangioma, pancreatic cysts, renal cysts, renal cell carcinoma)

      CaseHPOFreeText: Patient had 1 cerebellar HB, bilateal retinal angiomas, pancreatic & kidney cysts, RCC

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.T100Nfs*32 (c.298dupA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2573129737 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.298dupA

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: T100Nfs*32 (c.298dupA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:cerebellarhemangioblastoma DiseaseEntity:retinalcapillaryhemangioma DiseaseEntity:pancreaticcysts DiseaseEntity:renalcyst DiseaseEntity:renalcellcarcinoma ClinVarID:N/A Familial MutationType:plus_1_frameshift_variant ExperimentalAssay ProteinPosition:100 CivicName:T100Nfs(c.298dupA) cDNAposition:298 AminoAcidChange:THRtoASN MutationType:duplication CAID:CA2573129737 inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    7. ClingenBaseline 01 Nov 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 12

      KindredID: C

      Case: Sex Unknown, 21Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: At least 13 members in this family presented with the mutation. 5 were asymptomatic (ages 9, 12, 13, 17, and 29Y). Other family manifestations include: cerebellar, spinal, retinal HBs, pancreatic, hepatic, suprarenal and kidney cysts, epididymal cystadenoma, and RCC. Fig 1 displays family pedigree.

      CasePresentingHPOs: HP:0009715 (papillary cystadenoma of the epididymis)

      CaseHPOFreeText: Patient had epididymal cystadenoma. They however appeared absent of clinical manifestations of VHL disease prior to clinical and imaging scrutiny.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.T100Nfs*32 (c.298dupA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2573129737 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.298dupA

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: T100Nfs*32 (c.298dupA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican RefSeq:AF010238.1 Mutation:Germline DiseaseEntity:papillarycystadenomaoftheepididymis MutationType:plus_1_frameshift_variant ClinVarID:N/A Familial FamilyPedigree ExperimentalAssay CAID:CA2573129737 ProteinPosition:100 CivicName:T100Nfs(c.298dupA) cDNAposition:298 AminoAcidChange:THRtoASN MutationType:duplication inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    8. ClingenBaseline 30 Oct 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 14

      KindredID: C

      Case: Sex Unknown, 12Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: asymptomatic

      FamilyInfo: At least 13 members in this family presented with the mutation. 5 were asymptomatic (ages 9, 12, 13, 17, and 29Y). Other family manifestations include: cerebellar, spinal, retinal HBs, pancreatic, hepatic, suprarenal and kidney cysts, epididymal cystadenoma, and RCC. Fig 1 displays family pedigree.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Patient was asymptomatic at the time, likely due to young age

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.T100Nfs*32 (c.298dupA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2573129737 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.298dupA

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: T100Nfs*32 (c.298dupA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:asymptomatic MutationType:plus_1_frameshift_variant ClinVarID:N/A Familial FamilyPedigree ExperimentalAssay ProteinPosition:100 CivicName:T100Nfs(c.298dupA) cDNAposition:298 AminoAcidChange:THRtoASN MutationType:duplication CAID:CA2573129737 inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
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    pubmed.ncbi.nlm.nih.gov/16572651/
  4. Oct 2026
  5. onlinelibrary-wiley-com.ezproxy.lib.ryerson.ca onlinelibrary-wiley-com.ezproxy.lib.ryerson.ca
    Clinical and molecular features of familial and sporadic cases of von Hippel-Lindau disease from Mexico
    2
    1. ClingenBaseline 29 Oct 2026

      PatientID: V-3

      KindredID: 2

      Case: F, Age Unknown, Mexican

      DiseaseAssertion: Asymptomatic

      FamilyInfo: This family included three affected individuals and two of them were studied. The proband (IV-6) was a 23-year-old woman who was previously diagnosed with VHL disease and had a tumor in the cerebellum; VA and IOP were normal and no ocular manifestations of the disorder were recorded at examination. Her 36-year-old sister (IV-7) had a spinal cord HB. None of them presented ocular symptoms. Remarkably, her 55-year-old mother (III-8) did not exhibit any clinical manifestation of the disease. Three of her maternal uncles (III-1, III-2 and III-3) presented with cerebellar HB and one of them also had a renal cell carcinoma; In addition, her maternal grandmother (II-2) and her maternal grandmother's sister (II-3) had unspecified CNS tumors.

      CohortInfo: Two families and one apparently non-familial case were studied at the Institute of Ophthalmology ‘Conde de Valenciana’ (Mexico City, Mexico).

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Family pedigree (Figure 1 (b))

      Variant: p.L89P (c.266T>C)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 182979, https://www.ncbi.nlm.nih.gov/clinvar/variation/182979/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transition

      CivicName: L89P (c.266T>C)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican DiseaseEntity:Asymptomatic Mutation:Germline AssumedRefSeq:NM_000551.3 cDNAposition:266 ProteinPosition:89 AminoAcidChange:LEUtoPRO ClinVarID:182979 ClinVarID:Yes MutationType:missense_variant;transition CivicName:L89P(c.266T>C) FamilyPedigree Familial inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
    2. ClingenBaseline 29 Oct 2026
      The proband (IV-6) was a 23-year-old woman who was previously diagnosed with VHL disease and had a tumour in the cerebellum; VA and IOP were normal and no ocular manifestations of the disorder were recorded at examination.

      PatientID: IV-6 (Proband)

      KindredID: 2

      Case: F, 23Y0M, Mexican

      DiseaseAssertion: VHL

      FamilyInfo: This family included three affected individuals and two of them were studied. The proband (IV-6) was a 23-year-old woman who was previously diagnosed with VHL disease and had a tumor in the cerebellum; VA and IOP were normal and no ocular manifestations of the disorder were recorded at examination. Her 36-year-old sister (IV-7) had a spinal cord HB. None of them presented ocular symptoms. Remarkably, her 55-year-old mother (III-8) did not exhibit any clinical manifestation of the disease. Three of her maternal uncles (III-1, III-2 and III-3) presented with cerebellar HB and one of them also had a renal cell carcinoma; In addition, her maternal grandmother (II-2) and her maternal grandmother's sister (II-3) had unspecified CNS tumors.

      CohortInfo: Two families and one apparently non-familial case were studied at the Institute of Ophthalmology ‘Conde de Valenciana’ (Mexico City, Mexico).

      CasePresentingHPOs: HP:0006880 (Cerebellar hemangioblastoma)

      CaseHPOFreeText: Cerebellar hemangioblastoma.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Family pedigree (Figure 1 (b))

      Variant: p.L89P (c.266T>C)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: 182979, https://www.ncbi.nlm.nih.gov/clinvar/variation/182979/

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: missense_variant;transition

      CivicName: L89P (c.266T>C)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican DiseaseEntity:VHL DiseaseEntity:cerebellarhemangioblastoma Mutation:Germline AssumedRefSeq:NM_000551.3 cDNAposition:266 ProteinPosition:89 AminoAcidChange:LEUtoPRO ClinVarID:182979 ClinVarID:Yes MutationType:missense_variant;transition CivicName:L89P(c.266T>C) FamilyPedigree Familial inferred_gene_hgnc:12687 inferred_gene_source:ClinVar VHL Hypothesis Annotation
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    URL

    onlinelibrary-wiley-com.ezproxy.lib.ryerson.ca/doi/10.1111/j.1442-9071.2010.02241.x
  6. pubmed.ncbi.nlm.nih.gov pubmed.ncbi.nlm.nih.gov
    Von Hippel-Lindau disease germline mutations in Mexican patients with cerebellar hemangioblastoma
    7
    1. ClingenBaseline 26 Oct 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 19

      KindredID: C

      Case: Sex Unknown, 30Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: At least 13 members in this family presented with the mutation. 5 were asymptomatic (ages 9, 12, 13, 17, and 29Y). Other family manifestations include: cerebellar, spinal, retinal HBs, pancreatic, hepatic, suprarenal and kidney cysts, epididymal cystadenoma, and RCC. Fig 1 displays family pedigree.

      CasePresentingHPOs: HP:0009713 (spinal hemangioblastoma)

      CaseHPOFreeText: Patient had 2 spinal HBs. They however appeared absent of clinical manifestations of VHL disease prior to clinical and imaging scrutiny.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.T100Nfs*32 (c.298dupA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2573129737 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.298dupA

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: T100Nfs*32 (c.298dupA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican RefSeq:AF010238.1 Mutation:Germline DiseaseEntity:spinalhemangioblastoma MutationType:plus_1_frameshift_variant ClinVarID:N/A Familial FamilyPedigree ExperimentalAssay ProteinPosition:100 CivicName:T100Nfs(c.298dupA) cDNAposition:298 AminoAcidChange:THRtoASN MutationType:duplication CAID:CA2573129737 inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    2. ClingenBaseline 26 Oct 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 3

      KindredID: A

      Case: Sex Unknown, 35Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: two other symptomatic and one asymptomatic members of family A had this mutation. The symptomatic individuals had cerebellar hemangioblastomas, as well as spinal hemangioblastomas snd renal cysts.

      CasePresentingHPOs: HP:0006880 (cerebellar hemangioblastoma)

      CaseHPOFreeText: Symptomatic before 29Y, clinically manifested as >3 cerebellar hemangioblastomas

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270

      SupplementalData: N/A

      Variant: p.F76del (c.227_229del)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: CA357012 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.226_228delTTC

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: inframe_deletion

      CivicName: F76del (c.227_229del)

      MultipleGeneVariants: N/A
      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:cerebellarhemangioblastoma CivicName:F76del(c.227_229del) cDNAposition:227 ProteinPosition:76 MutationType:inframe_deletion Familial CAID:CA357012 ClinVarID:N/A inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    3. ClingenBaseline 26 Oct 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 13

      KindredID: C

      Case: Sex Unknown, 17Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: asymptomatic

      FamilyInfo: At least 13 members in this family presented with the mutation. 5 were asymptomatic (ages 9, 12, 13, 17, and 29Y). Other family manifestations include: cerebellar, spinal, retinal HBs, pancreatic, hepatic, suprarenal and kidney cysts, epididymal cystadenoma, and RCC. Fig 1 displays family pedigree.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: Patient was asymptomatic at the time, likely due to young age

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.G34Rfs*98 (c.99_100insA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2018007671 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/by_caid?caid=CA2018007671

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant

      CivicName: G34Rfs (c.99_100insA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:asymptomatic Ethnicity:Mexican MutationType:plus_1_frameshift_variant ClinVarID:N/A Familial FamilyPedigree ExperimentalAssay CAID:CA2573129737 ProteinPosition:100 CivicName:T100Nfs(c.298dupA) cDNAposition:298 MutationType:duplication AminoAcidChange:THRtoASN inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    4. ClingenBaseline 24 Oct 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 22

      KindredID: C

      Case: Sex unknown, 30Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: At least 13 members in this family presented with the mutation. 5 were asymptomatic (ages 9, 12, 13, 17, and 29Y). Other family manifestations include: cerebellar, spinal, retinal HBs, pancreatic, hepatic, suprarenal and kidney cysts, epididymal cystadenoma, and RCC. Fig 1 displays family pedigree.

      CasePresentingHPOs: HP:0006880; HP:0001737; HP:0000107 (cerebellar hemangioblastoma, pancreatic cysts, renal cyst)

      CaseHPOFreeText: Patient had 1 cerebellar HB, pancreatic and kidney cysts.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.T100Nfs*32 (c.298dupA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2573129737 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.298dupA

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: T100Nfs*32 (c.298dupA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:cerebellarhemangioblastoma DiseaseEntity:pancreaticcysts DiseaseEntity:renalcyst MutationType:plus_1_frameshift_variant ClinVarID:N/A Familial FamilyPedigree ExperimentalAssay ProteinPosition:100 MutationType:duplication AminoAcidChange:THRtoASN cDNAposition:298 CivicName:T100Nfs(c.298dupA) inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    5. ClingenBaseline 23 Oct 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 2

      KindredID: A

      Case: Sex Unknown, 35Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: two other symptomatic and one asymptomatic members of family A had this mutation. The symptomatic individuals had cerebellar hemangioblastomas, as well as spinal hemangioblastomas snd renal cysts.

      CasePresentingHPOs: HP:0006880 (cerebellar hemangioblastoma)

      CaseHPOFreeText: Symptomatic before 35Y, clinically manifested as 3 cerebellar hemangioblastomas

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270

      SupplementalData: N/A

      Variant: p.F76del (c.227_229del)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: CA357012 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.226_228delTTC

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: inframe_deletion

      CivicName: F76del (c.227_229del)

      MultipleGeneVariants: N/A
      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:cerebellarhemangioblastoma ProteinPosition:76 CivicName:F76del(c.227_229del) cDNAposition:227 MutationType:inframe_deletion Familial CAID:CA357012 ClinVarID:N/A inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    6. ClingenBaseline 23 Oct 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 11

      KindredID: C

      Case: Sex Unknown, 45Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: At least 13 members in this family presented with the mutation. 5 were asymptomatic (ages 9, 12, 13, 17, and 29Y). Other family manifestations include: cerebellar, spinal, retinal HBs, pancreatic, hepatic, suprarenal and kidney cysts, epididymal cystadenoma, and RCC. Fig 1 displays family pedigree.

      CasePresentingHPOs: HP:0006880; HP:0001737; HP:0000107; HP:0005584 (cerebellar hemangioblastoma, pancreatic cysts, renal cyst, renal cell carcinoma)

      CaseHPOFreeText: Patient had 1 cerebellar HB, pancreatic & kidney cysts, RCC

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.T100Nfs*32 (c.298dupA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2573129737 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.298dupA

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: T100Nfs*32 (c.298dupA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican RefSeq:AF010238.1 Mutation:Germline DiseaseEntity:cerebellarhemangioblastoma DiseaseEntity:renalcellcarcinoma DiseaseEntity:pancreaticcysts DiseaseEntity:renalcyst MutationType:plus_1_frameshift_variant ClinVarID:N/A Familial FamilyPedigree ExperimentalAssay CAID:CA2573129737 ProteinPosition:100 CivicName:T100Nfs(c.298dupA) cDNAposition:298 AminoAcidChange:THRtoASN MutationType:duplication inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
    7. ClingenBaseline 22 Oct 2026
      Ninety-eight individuals were tested for VHL mutations--23 symptomatic and 75 asymptomatic individuals belonging to 16 families. Seven of the families had definite clinical criteria of VHL disease, five had sporadic hemangioblastoma, and four had CNS hemangioblastoma combined with minor visceral signs. Molecular genetic testing identified five germline mutations in six of the definite VHL families (sensitivity 85%), but none in the possible VHL and sporadic hemangioblastoma cases; four of these mutations had been previously described and one is a novel mutation present in two unrelated families. After patients carrying the mutation were identified, they underwent clinical screening and asymptomatic VHL-related lesions were identified in 43%.

      PatientID: 16

      KindredID: C

      Case: Sex Unknown, 54Y0M, Mexican (Latino/Admixed American)

      DiseaseAssertion: assumed VHL

      FamilyInfo: At least 13 members in this family presented with the mutation. 5 were asymptomatic (ages 9, 12, 13, 17, and 29Y). Other family manifestations include: cerebellar, spinal, retinal HBs, pancreatic, hepatic, suprarenal and kidney cysts, epididymal cystadenoma, and RCC. Fig 1 displays family pedigree.

      CasePresentingHPOs: HP:0000107 (renal cyst)

      CaseHPOFreeText: Patient had renal cysts. They however appeared absent of clinical manifestations of VHL disease prior to clinical and imaging scrutiny.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: 20064270 (Here, the family cohort is given with a reportedly different variant of: p.G34Rfs*98 (c.99_100insA). Unclear of why this is or which most correctly corresponds to the family).

      SupplementalData: N/A

      Variant: p.T100Nfs*32 (c.298dupA)

      LegacyVariant: c.1012_1013insA

      CaseProblemVariantFreeText: The ‘1012_1013insA’ mutation is out-of-frame, leading to a modification of 31 amino acids downstream and a premature stop codon at nucleotides 5441-5443 (amino acid residue 131).

      ClinVarID: N/A

      CAID: CA2573129737 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.298dupA

      gnomAD: N/A

      VariantEvidence: The modified amino acids are located in a domain common to all pVHL isoforms, the highly conserved cctbinding domain of the protein, involved in the formation of the pVHL elongin complex that is crucial for tumor suppression. Furthermore, the mutant protein is prematurely truncated and lacks the C-terminal half of exon 2 and exon 3 completely, which includes the nuclear export signal and the elongin C binding site of pVHL. Thus, this truncated protein would affect the two functional isoforms of pVHL: the major isoform pVHL30 and pVHL19, but not isoform 2, which lacks exon 2 but is not functional

      MutationType: plus_1_frameshift_variant; duplication

      CivicName: T100Nfs*32 (c.298dupA)

      MultipleGeneVariants: N/A

      InheritancePattern:AutosomalDominant Ethnicity:Mexican Mutation:Germline RefSeq:AF010238.1 DiseaseEntity:renalcyst MutationType:plus_1_frameshift_variant ClinVarID:N/A Familial FamilyPedigree ExperimentalAssay CAID:CA2573129737 ProteinPosition:100 CivicName:T100Nfs(c.298dupA) cDNAposition:298 AminoAcidChange:THRtoASN MutationType:duplication inferred_gene_hgnc:12687 inferred_gene_source:CAID VHL Hypothesis Annotation
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    pubmed.ncbi.nlm.nih.gov/16572651/