PatientID: 23

KindredID: 23

Case: Age, Sex, Ethnicity unknown

DiseaseAssertion: VHL

FamilyInfo: N/A

CasePresentingHPOs: HP:0010797; HP:0009711 (hemangioblastoma, retinal capillary hemangioma)

CaseHPOFreeText: patient was recorded with a CNS hemangioblastoma, and a retinal hemangioblastoma

CaseNotHPOs: HP:0030421; HP:0030405; HP:0006770; HP:0100634 (epididymal tumour, pancreatic endocrine tumour, clear cell renal cell carcinoma, neuroendocrine neoplasm)

CaseNotHPOFreeText: patient was not recorded to have an epididymal tumor, a pancreatic endocrine tumour (pancreatic neuroendocrine neoplasm), CCRCC, nor a neuroendocrine neoplasm (pheochromocytoma/paraganglioma)

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: Yes; see table S1 for VHL subject genetic and manifestation information.

Variant: c.341-2A>G

CaseProblemVariantFreeText: N/A

LegacyVariant: N/A

ClinVarID: 223194 https://www.ncbi.nlm.nih.gov/clinvar/variation/223194/

CAID: N/A

gnomAD: N/A

VariantEvidence: Recorded in paper as: IVS1-2A>G; contacted author for confirmation.

MutationType: splice_site_variant

CivicName: Splice Site (c.341-2A>G)

MultipleGeneVariants: N/A

150 index patients with pheochromocytoma/paraganglioma were evaluated. Phenotypic data were collected and germline mutations in five susceptibility genes (RET, VHL, SDHB, SDHD and SDHC) were tested. Out of 30 patients with familial presentation, 13 were clinically diagnosed as VHL syndrome. A 32 year old Asian Indian female presented with unilateral pheochromocytoma. Using PCR and Sanger sequencing through peripheral blood, genetic testing confirmed a non-familial splice mutation at c.341-2 A>G of the VHL gene. Family history is unknown.