PatientID: Proband

KindredID: 13

Case: M, 44Y0M, Korean

DiseaseAssertion: VHL

FamilyInfo: Son and brother presented with the same VHL variant. Son is asymptomatic. Brother presented with CNS hemangioblastoma at 29Y, retinal hemangioblastoma at 52Y, bilateral RCC at 43Y, multiple pancreatic lesions (pancreatic cyst or tumor, unspecified) at 43Y and bilateral renal cysts at 43Y. Nephew presented with CNS hemangioblastoma at 22Y, retinal hemangioblastoma at 18Y, bilateral RCC at 29Y and multiple pancreatic lesions (pancreatic cyst or tumor, unspecified) at 18Y but was not genetically confirmed.

CohortInfo: Thirteen unrelated patients with germline VHL mutations who were diagnosed with VHL disease were evaluated.

CasePresentingHPOs: HP:0001732; HP:0010797; HP:0005584; HP:0009711 (Abnormality of the pancreas, Hemangioblastoma, Renal cell carcinoma, Retinal capillary hemangioma)

CaseHPOFreeText: CNS hemangioblastoma at 32Y, retinal hemangioblastoma at 44Y, bilateral RCC at 44Y and multiple pancreatic lesions (pancreatic cyst or tumor, unspecified) at 41Y. Diagnosed with VHL Type 1.

CaseNotHPOs: HP:0000107; HP:0002666 (Renal cyst, Pheochromocytoma)

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: Exon 2-3 Deletion (c.341-?_642+?del)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: exon_loss_variant

CivicName: Exon 2-3 Deletion

MultipleGeneVariants: N/A

PatientID: II-26

KindredID: 1

Case: M, 45Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: Large multigenerational family with a history of both VHL and spinocerebellar ataxia type 2 (SCA2). Screening for clinical and genetic diagnostics were gathered as well as thorough information on non-living members. His two daughters also appeared to have the VHL mutation. See family pedigree (Fig. 1).

CasePresentingHPOs: HP:0006880; HP:0009711; HP:0006770; HP:0009713; HP:0002031; HP:0003396; HP:0001649; HP:0001737; HP:0030424 (cerebellar hemangioblastoma, retinal capillary hemangioma, clear cell renal cell carcinoma, spinal hemangioblastoma, Abnormal esophagus morphology, Syringomyelia, Tachycardia, pancreatic cysts, epididymal cyst)

CaseHPOFreeText: CNS (including retinal angiomas) and renal involvement; with cerebellum hemangioblastoma found at age 34Y. An oesophageal abnormality that was treated with vagotomy at age 35Y. At age 44Y had bilateral clear cell renal cancer resulting in a right partial nephrectomy and left total nephrectomy. Same year had spinal surgery to treat a syrinx associated with a spinal cord haemangioblastoma, as well as cystic lesions in the pancreas (consistent with epididymal cystadenoma).

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.E160Sfs*10 (c.477delA)

LegacyVariant: c.688delA

CaseProblemVariantFreeText: c.477del, p.Glu160Serfs10 should be used. Details: 477del same as 475delA bc that codon is AAA so doesn't matter which A gets deleted: there is an A at 475 476 477 so for HGVS we say that 477 (the latter) is deleted since that follows HGVS nomenclature. Thus use c.477del: p.Glu160Serfs10

ClinVarID: 182959 https://www.ncbi.nlm.nih.gov/clinvar/variation/182959/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: minus_1_frameshift_variant

CivicName: E160fs (c.477del)

MultipleGeneVariants: N/A