PatientID: N/A

KindredID: 1

Case: M, 3Y0M, Caucasian

DiseaseAssertion: VHL

FamilyInfo: Family history was remarkable for a renal tumor in the paternal grandmother at age 65, treated by nephrectomy in 1998. Furthermore, a maternal uncle had a history of thyroid cancer, and a maternal cousin had a history of breast cancer. The patient’s parents and a 13-year-old half-brother were healthy.

CasePresentingHPOs:HP:0005584, HP:0000790 ( renal cell carcinoma, hematuria)

CaseHPOFreeText: Computed tomographic scan showed a right renal mass. The tumor was impinging on the renal sinus and extended to the renal capsule. The patient underwent a right nephrectomy. In addition, one of five hilar lymph nodes was positive for metastatic disease.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p. L188V (c.562C>G)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/

ClinVar: 2225 https://www.ncbi.nlm.nih.gov/clinvar/variation/2225/

CAID: N/A

gnomAD: 0.00002121 https://gnomad.broadinstitute.org/variant/3-10191569-C-G

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: L188V (c.562C>G)

MultipleGeneVariants: t(X;1)(p11.2; p34.3)

PatientID: II,4

KindredID: 1

Case: M, Age Unknown, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: The patient had significant family history. His mother refused genetic testing but presented with bilateral pohechromocytoma. His father was found to have the same VHL mutation. One of his siblings (patient II,3) was unaffected, while another (patient II,2) was found to have the mutation and presented with bilateral pheochromocytoma. His sibling (patient II,1) passed during childbirth with symptoms and signs of a hypertensive crisis with the autopsy showing a left adrenal and extraadrenal pheochromocytoma. However, cause of death was a cerebral hemorrhage. His half sister (patient II,5) also had the same VHL mutation and presented with bilateral pheochromocytoma. Refer to figure 1 for family pedigree.

CasePresentingHPOs: HP:0002666 (pheochromocytoma)

CaseHPOFreeText: bilateral pheochromocytoma

CaseNotHPOs: HP:0006737 (Extraadrenal pheochromocytoma)

CaseNotHPOFreeText: Absence of extraadrenal pheochromocytoma. Absence of thyroid disease at age 24.

CasePreviousTesting: RET

PreviouslyPublished: 7563486, 12414898

SupplementalData: N/A

Variant: p.L188V (c.562C>G)

LegacyVariant: p.L259V (c.775C>G)

CaseProblemVariantFreeText: N/A

ClinVar: 2225 https://www.ncbi.nlm.nih.gov/clinvar/variation/2225/

CAID: N/A

gnomAD: 0.00002121 https://gnomad.broadinstitute.org/variant/3-10191569-C-G

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: L188V (c.562C>G)

MultipleGeneVariants: N/A

GroupID/ KindredID: 37CE, 38CE

DiseaseAssertion: VHL

GroupSize: N/A

GroupNumberMales: N/A

GroupNumberFemales: N/A

GroupEthnicity: N/A

GroupAgeRange: N/A

GroupInfo: This germline familial VHL mutation was taken from the Munich, university of Freiburg and Institute of Pathology database, with an unknown number of members belonging to two family IDs: Family 37CE and 38CE. Table 4 lists all ID and mutations associated with individuals with pheochromocytoma.

GroupPresentingHPOs: HP:0002666 (pheochromocytoma)

GroupHPOFreeText: Described as multiple VHL families with pheochromocytoma. Other phenotypes are likely, including renal cell carcinoma, however not detailed here.

GroupNotHPOs: N/A

GroupNotHPOFreeText: N/A

GroupPreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L188V (c.562C>G)

LegacyVariant: p.L188V (c.775C>G)

CaseProblemVariantFreeText: N/A

ClinVarID: 2225 https://www.ncbi.nlm.nih.gov/clinvar/variation/2225/

CAID: N/A

gnomAD: 0.00002121 https://gnomad.broadinstitute.org/variant/3-10191569-C-G

VariantEvidence: This paper declares this variant is predicted to compromise the Elongin-binding site by location between codons 157 and 189.

MutationType: missense_variant;transversion

CivicName: L188V (c.562C>G)

MultipleGeneVariants: N/A

PatientID: 1

KindredID: A

Case: M, 61Y0M, Ethnicity Unknown

DiseaseAssertion: assumed VHL

FamilyInfo: Positive: the patient’s sister also presented with the germline c.562C>G mutation, and metastatic lobular breast carcinoma. In a family pedigree, 10 additional members affected with cancer were displayed. This included both of their parents: father with lung cancer, mother with skin cancer, additional sister with breast cancer, brother with melanoma. Lastly, his two sons presented with skin cancer, however no description of their genotyping. See Fig. 3.

CasePresentingHPOs: HP:0006770; HP:0001028 (Clear cell renal cell carcinoma, hemangioma)

CaseHPOFreeText: He presented in 2012 (52Y) with worsening lower abdominal discomfort (CT scan revealed a right renal solid mass of renal cell carcinoma). A right renal nephrectomy was done, confirming ccRCC. 4 years later, new lung nodules and an enhancing lesion in the L1 vertebral body was found (metastatic ccRCC). Additionally, in 2020, a pancreatic lesion present on his scans was presumed to be a metastatic RCC lesion (consistent with an atypical hemangioma).

CaseNotHPOs: HP:0002666; HP:0009711 (Pheochromocytoma, retinal capillary hemangioblastoma)

CaseNotHPOFreeText: N/A

CasePreviousTesting: MAX/NF1/RET/SDHA/SHDB/SHDC/SDHD/SDHAF2/TMEM127 [133 genes evaluated by germline testing - Invitae]

PreviouslyPublished: N/A

SupplementalData: Yes

Variant: p.L188V (c.562C>G)

LegacyVariant: N/A

CaseProblemVariantFreeText: In 2013, somatic next generation sequencing (NGS) testing using a panel of 447 cancer genes (OncoPanel, BWH Pathology, MA, USA) was performed on the resected renal specimen. This revealed the following variants: VHL p.Leu188Val (c.562C>G), CHEK2 p.Val395Leu (c.1183G>C), VHL p.Ala149Thr (c.445G>A) variant, and several copy number losses including a large single-copy deletion in 3p. 6 years later, germline testing revealed a heterozygous germline VHL p.Leu188Val variant, a CHEK2 and ERCC4 mutation.

ClinVarID: 2225 https://www.ncbi.nlm.nih.gov/clinvar/variation/2225/

CAID: N/A

gnomAD: 0.00002121 https://gnomad.broadinstitute.org/variant/3-10191569-C-G

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: L188V (c.562C>G)

MultipleGeneVariants: Somatic, VHL, c.445G>A (p.Ala149Thr)

GroupID: None

DiseaseAssertion: VHL

GroupSize: 9

GroupNumberMales: Unknown

GroupNumberFemales: Unknown

GroupEthnicity: Unknown

GroupAgeRange: Unknown

GroupInfo: Nine individuals from 2 different families initially diagnosed with MEN-IIA were investigated. All were found to have the same (c.562C>G) missense mutation in the VHL gene.

GroupPresentingHPOs: HP:0002666; HP:0006737; HP:0002865; HP:0011781 (pheochromocytoma, extra adrenal pheochromocytoma, medullary thyroid carcinoma, thyroid C cell hyperplasia)

GroupHPOFreeText: All 9 patients had pheochromocytoma, 2 of the 9 patients (unspecified) also had thyroid C-cell tumors, 1 (unspecified) had medullary thyroid carcinoma, and 1 (unspecified) had C-cell hyperplasia. 3 of the 9 patients (unspecified) also developed extra-adrenal pheochromocytoma.

GroupNotHPOs: HP:0000843; HP:0009711; HP:0010797; HP:0000107; HP:0001737 (Hyperparathyroidism, retinal capillary hemangioma, hemangioblastoma, renal cysts, pancreatic cysts.

GroupNotHPOFreeText: None of the patients had any clinical signs of renal cancer. Two patients (unspecified) were screened for retinal, CNS, and abdominal lesions; neither had occult VHL lesions.

GroupPreviousTesting: RET

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L188V (c.562C>G)

LegacyVariant: c.775C>G

CaseProblemVariantFreeText: N/A

ClinVarID: 2225, https://www.ncbi.nlm.nih.gov/clinvar/variation/2225/

CAID: CA020488

gnomAD: 0.00002121, https://gnomad.broadinstitute.org/variant/3-10191569-C-G?dataset=gnomad_r2_1

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: L188V (c.562C>G)

MultipleGeneVariants: N/A

PatientID: 43

KindredID: 5959

Case: F, 35Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: N/A

CasePresentingHPOs: HP:0030405 (pancreatic endocrine tumour)

CaseHPOFreeText: She presented with four pathologic pancreatic neuroendocrine tumors.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L188V (c.562C>G)

LegacyVariant: p.L188V (c.775C>G)

CaseProblemVariantFreeText: N/A

ClinVar: 2225 https://www.ncbi.nlm.nih.gov/clinvar/variation/2225/

CAID: CA020488 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.562C%3EG

gnomAD: 0.00002121 https://gnomad.broadinstitute.org/variant/3-10191569-C-G

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: L188V (c.562C>G)

MultipleGeneVariants: Germline, VHL, c.241C>T (p.Prp81Ser)