PatientID: VII-3

KindredID: 1

Case: M, 19Y0M, Ethnicity Unknown

DiseaseAssertion: Asymptomatic

FamilyInfo: 13 affected individuals in this family were found. The p.Tyr112Asn (c.334T>A) mutation of the VHL gene cosegregated with the disease in all five tested affected individuals from the family (V-5, VI-1, VI-2, VI-3, and VII-1). 7/13 have had renal cell carcinoma. Other manifestations of the disease in this family include renal cysts, retinal angioma, and CNS hemangioblastoma. There was one case of pheochromocytoma (VII-1). No other pheochromocytomas or related neuroendocrine tumors of the pancreas or adrenal gland have been diagnosed or recognized retrospectively by review of medical records and recall of relatives. The mutation was also found in three asymptomatic relatives (VII-2, VII-3, and VII-4).

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.Y112N (c.334T>A)

LegacyVariant: T547A

CaseProblemVariantFreeText: N/A

ClinVarID: 2228, https://www.ncbi.nlm.nih.gov/clinvar/variation/2228/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: Y112N (c.334T>A)

MultipleGeneVariants: N/A

PatientID: VII-2

KindredID: 1

Case: F, 12Y0M, Ethnicity Unknown

DiseaseAssertion: Asymptomatic

FamilyInfo: 13 affected individuals in this family were found. The p.Tyr112Asn (c.334T>A) mutation of the VHL gene cosegregated with the disease in all five tested affected individuals from the family (V-5, VI-1, VI-2, VI-3, and VII-1). 7/13 have had renal cell carcinoma. Other manifestations of the disease in this family include renal cysts, retinal angioma, and CNS hemangioblastoma. There was one case of pheochromocytoma (VII-1). No other pheochromocytomas or related neuroendocrine tumors of the pancreas or adrenal gland have been diagnosed or recognized retrospectively by review of medical records and recall of relatives. The mutation was also found in three asymptomatic relatives (VII-2, VII-3, and VII-4).

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.Y112N (c.334T>A)

LegacyVariant: T547A

CaseProblemVariantFreeText: N/A

ClinVarID: 2228, https://www.ncbi.nlm.nih.gov/clinvar/variation/2228/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: Y112N (c.334T>A)

MultipleGeneVariants: N/A

PatientID: IV-4

KindredID: 1

Case: M, Age Unknown, Ethnicity Unknown

DiseaseAssertion: Assumed VHL

FamilyInfo: 13 affected individuals in this family were found. The p.Tyr112Asn (c.334T>A) mutation of the VHL gene cosegregated with the disease in all five tested affected individuals from the family (V-5, VI-1, VI-2, VI-3, and VII-1). 7/13 have had renal cell carcinoma. Other manifestations of the disease in this family include renal cysts, retinal angioma, and CNS hemangioblastoma. There was one case of pheochromocytoma (VII-1). No other pheochromocytomas or related neuroendocrine tumors of the pancreas or adrenal gland have been diagnosed or recognized retrospectively by review of medical records and recall of relatives. The mutation was also found in three asymptomatic relatives (VII-2, VII-3, and VII-4).

CasePresentingHPOs: HP:0000107; HP:0010797 (Renal cyst, Hemangioblastoma)

CaseHPOFreeText: CNS hemangioblastoma and renal cyst. Age of onset not provided. Deceased.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.Y112N (c.334T>A)

LegacyVariant: T547A

CaseProblemVariantFreeText: N/A

ClinVarID: 2228, https://www.ncbi.nlm.nih.gov/clinvar/variation/2228/

CAID: N/A

gnomAD: N/A

VariantEvidence: Variant is inferred in this patient from clinical findings and family history.

MutationType: missense_variant;transversion

CivicName: Y112N (c.334T>A)

MultipleGeneVariants: N/A

A previous study of 26 Japanese, VHL families was extended to 41 additional families. Germline mutations were detected in 55 of 77 Japanese families using SSCP, direct sequencing, and Southern Blot analysis of peripheral blood samples. The Y112N (c.334T>A) germline missense mutation of the VHL gene was found in 2 VHL family members with hemangioblastomas of the central nervous system, retinal angiomas, pancreatic cysts or tumors (unspecified) (family ID 74).