PatientID: IV-19

KindredID: 1

Case: F, 25Y0M, Iranian

DiseaseAssertion: assumed VHL

FamilyInfo: Familial history was positive. See Fig 1. A total of 43 members of the kindred, 24 males and 19 females, aged 2-77 years were reached for evaluation. It is stated in the paper that all affected subjects (13) were positive for the same mutation (c.500G>A). Additionally, gene sequencing revealed that 4 asymptomatic members of the kindred also harbored the pathogenic mutation. Phenotypes include pheochromocytoma, hemangioblastoma, and retinal HB.

CasePresentingHPOs: HP:0002666; HP:0006880 (Pheochromocytoma, cerebellar hemangiomblastoma)

CaseHPOFreeText: Patient had a unilateral PCC and cerebellar HB at 23Y which was surgically removed at the time. She presently has no abnormal findings.

CaseNotHPOs: HP:0000077 (abnormality of the kidney)

CaseNotHPOFreeText: There was no case of kidney tumors among the kindred.

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.R167Q (c.500G>A)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2216, https://www.ncbi.nlm.nih.gov/clinvar/variation/2216/

CAID: N/A

gnomAD: 0.000003977, https://gnomad.broadinstitute.org/variant/3-10191507-G-A

VariantEvidence: N/A

MutationType: missense_variant; transition

CivicName: R167Q (c.500G>A)

MultipleGeneVariants: N/A

GroupID: 8

DiseaseAssertion: assumed VHL

GroupSize: 15

GroupNumberMales: N/A

GroupNumberFemales: N/A

GroupEthnicity: Chinese

GroupAgeRange: 36.9Y +/- 15.6Y

GroupInfo: Clinical characteristics of 258 patients from 80 unrelated Chinese families were reported in this study. Grouped by the 21 mutations found, 3 families with 15 members total were described, and phenotypic information was given for this group.

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

GroupHPOFreeText: 10 of the 15 members presented with CNS hemangioblastoma (mean age of 29.9Y), 2/15 had retinal capillary hemangiomas at 23Y and 30Y, renal cell carcinoma in 4 members (at a mean age of 41.5Y), pancreatic cysts in 5 members (with a mean age of onset of 41.4Y), and 1 member with pheochromocytoma at 38Y

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

GroupNotHPOFreeText: No patients were given with papillary cystadenoma of the epididymis

GroupPreviousTesting: N/A

PreviouslyPublished: 29330336; 28388566

SupplementalData: N/A

Variant: p.N90I (c.269A>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 223172 https://www.ncbi.nlm.nih.gov/clinvar/variation/223172/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: N90I (c.269A>T)

MultipleGeneVariants: N/A

PatientID: 16 (Uncle)

KindredID: 18

Case: M, 68Y0M, Ethnicity Unknown

DiseaseAssertion: Assumed VHL

FamilyInfo: 11 members of this family tested positive for the c.712C>T/c.499C>T germline variant of the VHL gene. 14 members of this family were assumed to carry this variant due to family history/personal medical history. Members of this family range from asymptomatic to multi-organ involvement (pheochromocytoma, pancreatic and renal cysts/tumors and hemangioblastomas). The family was previously reported in PMID 3942913.

CasePresentingHPOs: HP:0002666; HP:0005584; HP:0010797 (Pheochromocytoma, Renal cell carcinoma, Hemangioblastoma)

CaseHPOFreeText: This patient presented with pheochromocytoma (23Y). Age of diagnosis for CNS hemangioblastoma and renal cell carcinoma is unknown.

CaseNotHPOs: HP:0000077; HP:0001732; HP:0009711 (Abnormality of the kidney, Abnormality of the pancreas, Retinal capillary hemangioma)

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: 3942913 (some members of this family are previously reported (phenotypes only) but unable to match patients across papers with confidence)

SupplementalData: Supplementary Table 1.

Variant: N/A

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: N/A

gnomAD: N/A

VariantEvidence: Authors state that the c.712C>T germline familial variant of the VHL gene in this patient is “inferred from the family”. No genetic testing was done on this patient to confirm this. Being that this familial variant is out of bound with respect to the NM_000551.3 reference sequence, it was concluded that this variant is noted in the Latif et al. (1993) reference and was translated to c.499C>T (NM_000551.3).

MutationType: N/A

CivicName: N/A

MultipleGeneVariants: N/A