PatientID: II-4

KindredID: 3

Case: M, Age Unknown (deceased), Chinese

DiseaseAssertion: CNS Hemangioblastoma

FamilyInfo: The transition mutation was found and confirmed in 1 patient (II-3) and 2 carriers (III-7, IV-2). 5 members, including II-4, had hemangioblastomas of the CNS, but had all passed away before genetic testing. Could be assumed and deduced the genetics due to pedigree showing future linear relations of this mutation.

CasePresentingHPOs: HP:0010797 (hemangioblastoma)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L116V (c.346C>G) [assumed]

LegacyVariant: p.L116V (c.559C>G) [assumed]

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA351753642 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.346C%3EG

gnomAD: N/A

VariantEvidence: No genetic testing was done prior to death, however family history and presentation leads to this assumption

MutationType: missense_variant;transversion

CivicName: L116V (c.346C>G)

MultipleGeneVariants: N/A

PatientID: IV-2

KindredID: 3

Case: M, Age Unknown, Chinese

DiseaseAssertion: asymptomatic

FamilyInfo: The transition mutation was found and confirmed in this patient, his great-aunt, and his first-cousin once removed. 5 additional members had hemangioblastomas of the CNS, but had all passed away before genetic testing. Could be assumed and deduced the genetics due to pedigree showing future linear relations of this mutation. His mother, two uncles, and grandfather are all individuals with hemangioblastomas who have passed away.

CasePresentingHPOs: N/A

CaseHPOFreeText: Stated as carrier, however he is young (likely before the age of onset)

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L116V (c.346C>G)

LegacyVariant: p.L116V (c.559C>G)

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA351753642 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.346C%3EG

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: L116V (c.346C>G)

MultipleGeneVariants: N/A

PatientID: II-1

KindredID: 3

Case: M, Age Unknown (deceased), Chinese

DiseaseAssertion: CNS Hemangioblastoma

FamilyInfo: The transition mutation was found and confirmed in 1 patient (II-3) and 2 carriers (III-7, IV-2). 5 members, including II-1, had hemangioblastomas of the CNS, but had all passed away before genetic testing. Could be assumed and deduced the genetics due to pedigree showing future linear relations of this mutation.

CasePresentingHPOs: HP:0010797 (hemangioblastoma)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L116V (c.346C>G) [assumed]

LegacyVariant: p.L116V (c.559C>G) [assumed]

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA351753642 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.346C%3EG

gnomAD: N/A

VariantEvidence: No genetic testing was done prior to death, however family history and presentation leads to this deduction

MutationType: missense_variant;transversion

CivicName: L116V (c.346C>G)

MultipleGeneVariants: N/A

GroupID: 66

DiseaseAssertion: assumed VHL

GroupSize: 3

GroupNumberMales: N/A

GroupNumberFemales: N/A

GroupEthnicity: N/A

GroupAgeRange: N/A

GroupInfo: 3 of the 573 patients discussed in this paper were found to have identical variants. This mutation (c.346C>G) was found in 1 VHL family with 3 patients.

GroupPresentingHPOs: HP:0009711 (retinal capillary hemangioma)

GroupHPOFreeText: 3 patients had retinal capillary hemangioma (RH), with a mean age of diagnosis of 43Y (RH).

GroupNotHPOs: HP:0002666; HP:0006880; HP:0005584 (pheochromocytoma; cerebellar hemangioblastoma; renal cell carcinoma)

GroupNotHPOFreeText: N/A

GroupPreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: Supplementary Table S1.

Variant: p.L116V (c.346C>G)

CaseProblemVariantFreeText: N/A

LegacyVariant: N/A

ClinVarID: N/A

CAID: CA351753642 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.346C%3EG

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: L116V (c.346C>G)

MultipleGeneVariants: N/A

This study shows the clinical characteristics of three large Chinese families with VHL disease and evaluates the consequence of the genetic test for the diagnosis of VHL disease and clinical screening of the family members. DNA is extracted from peripheral blood in 43 members from three large families with VHL disease and amplified by PCR to three exons of the VHL gene. The PCR products were directly sequenced and the mutations compared with the Human Gene Mutation Database. The ages of the patients who are given the initial diagnosis ranged from 16 to 47 years (mean: 31 years), and the mean time was 17.3 months (2-30 months) from the emergence of the symptom to patients' first visit. Furthermore, the gender distribution was 20% female (4) and 80% male (16). VHL phenotypes of the disease is seen in 8 members of a Chinese family. Molecular diagnosis is confirmed in only 3 family members, as 5 died prior to genetic testing. These 5 could be assumed due to pedigree showing future linear relations of this mutation. The mutation p.L116V (c.346C>G) was referred to in the paper by c.559C>G due to a difference in transcript sequence. Manifestations in this family include CNS hemangioblastoma, and renal cysts. The proband (female) had renal cysts and hemangioblastoma, and 2 of her brothers and their 3 children (2 male; 1 female) had hemangioblastomas. The clinical manifestations were characterized by early morbidity, rapid progress, high relapse rate, and high mortality rate. There are two members who are asymptomatic, but they are young (likely before the age of onset). ACMG evidence codes: 'PP1' based on segregation results, 'PP2' because they observe a missense variant in gene where missense variants are common mechanism of disease, 'PP4' because the patients phenotypes and family history are highly specific for a disease with single genetic etiology.

PatientID: III-2

KindredID: 3

Case: F, Age Unknown (deceased), Chinese

DiseaseAssertion: CNS Hemangioblastoma

FamilyInfo: The transition mutation was found and confirmed in 1 patient (II-3) and 2 carriers (III-7, IV-2). 5 members, including III-2, had hemangioblastomas of the CNS, but had all passed away before genetic testing. Could be assumed and deduced the genetics due to pedigree showing future linear relations of this mutation.

CasePresentingHPOs: HP:0010797 (hemangioblastoma)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L116V (c.346C>G) [assumed]

LegacyVariant: p.L116V (c.559C>G) [assumed]

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA351753642 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.346C%3EG

gnomAD: N/A

VariantEvidence: No genetic testing was done prior to death, however family history and presentation leads to this deduction

MutationType: missense_variant;transversion

CivicName: L116V (c.346C>G)

MultipleGeneVariants: N/A

PatientID: III-3

KindredID: 3

Case: M, Age Unknown (deceased), Chinese

DiseaseAssertion: CNS Hemangioblastoma

FamilyInfo: The transition mutation was found and confirmed in 1 patient (II-3) and 2 carriers (III-7, IV-2). 5 members, including III-3, had hemangioblastomas of the CNS, but had all passed away before genetic testing. Could be assumed and deduced the genetics due to pedigree showing future linear relations of this mutation.

CasePresentingHPOs: HP:0010797 (hemangioblastoma)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L116V (c.346C>G) [assumed]

LegacyVariant: p.L116V (c.559C>G) [assumed]

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA351753642 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.346C%3EG

gnomAD: N/A

VariantEvidence: No genetic testing was done prior to death, however family history and presentation leads to this deduction

MutationType: missense_variant;transversion

CivicName: L116V (c.346C>G)

MultipleGeneVariants: N/A

PatientID: III-1

KindredID: 3

Case: M, Age Unknown (deceased), Chinese

DiseaseAssertion: CNS Hemangioblastoma

FamilyInfo: The transition mutation was found and confirmed in 1 patient (II-3) and 2 carriers (III-7, IV-2). 5 members, including III-1, had hemangioblastomas of the CNS, but had all passed away before genetic testing. Could be assumed and deduced the genetics due to pedigree showing future linear relations of this mutation.

CasePresentingHPOs: HP:0010797 (hemangioblastoma)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L116V (c.346C>G) [assumed]

LegacyVariant: p.L116V (c.559C>G) [assumed]

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA351753642 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.346C%3EG

gnomAD: N/A

VariantEvidence: No genetic testing was done prior to death, however family history and presentation leads to this deduction

MutationType: missense_variant;transversion

CivicName: L116V (c.346C>G)

MultipleGeneVariants: N/A

PatientID: III-7

KindredID: 3

Case: F, Age Unknown, Chinese

DiseaseAssertion: asymptomatic

FamilyInfo: The transition mutation was found and confirmed in this patient’s mother (II-3) and 2 carriers, her, and her first-cousin once removed (III-7, IV-2). 5 additional members had hemangioblastomas of the CNS, but had all passed away before genetic testing. Could be assumed and deduced the genetics due to pedigree showing future linear relations of this mutation.

CasePresentingHPOs: N/A

CaseHPOFreeText: Stated as carrier, however she is young (likely before the age of onset)

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.L116V (c.346C>G)

LegacyVariant: p.L116V (c.559C>G)

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA351753642 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.346C%3EG

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: L116V (c.346C>G)

MultipleGeneVariants: N/A