PatientID: II.7

KindredID: F8

Case: M, Age Unknown, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: 6/10 genetically tested family members across two generations were found to harbor the c.340+648T>C and c.340+617C>G germline mutations of the VHL gene. Patient I.2 presented with retinal capillary hemangioma, pheochromocytoma (pheo) and renal cell carcinoma. Patient I.3 presented with CNS hemangioblastoma and pheo. Patient II.1 presented with pheo. Patients II.2, II.6 and II.7 presented with retinal capillary hemangioma.

CasePresentingHPOs: HP:0009711 (Retinal capillary hemangioma)

CaseHPOFreeText: Presented with retinal capillary hemangioma. Tumor detected at age 10.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: c.340+648T>C

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 827583, https://www.ncbi.nlm.nih.gov/clinvar/variation/827583/

CAID: N/A

gnomAD: N/A

VariantEvidence: These variants segregated in 6 patients of this family who developed VHL disease and were absent in 4 healthy tested descendants, indicating their presence on a single disease-associated allele. Sequencing of tumor DNA did not display loss of heterozygosity, suggesting that a WT VHL deletion (as observed in classic VHL disease) may not be a prerequisite in cells of patients with this specific VHL genotype.

MutationType: missense_variant;transition; splice_site_variant

CivicName: c.340+617C>G and c.340+648T>C

MultipleGeneVariants: Germline, VHL, c.340+617C>G

PatientID: I.3

KindredID: F8

Case: M, Age Unknown, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: 6/10 genetically tested family members across two generations were found to harbor the c.340+648T>C and c.340+617C>G germline mutations of the VHL gene. Patient I.2 presented with retinal capillary hemangioma, pheochromocytoma (pheo) and renal cell carcinoma. Patient I.3 presented with CNS hemangioblastoma and pheo. Patient II.1 presented with pheo. Patients II.2, II.6 and II.7 presented with retinal capillary hemangioma.

CasePresentingHPOs: HP:0010797; HP:0002666 (Hemangioblastoma, Pheochromocytoma)

CaseHPOFreeText: Presented with CNS hemangioblastoma and pheochromocytoma. Tumors detected at ages 24 and 46.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: c.340+648T>C

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 827583, https://www.ncbi.nlm.nih.gov/clinvar/variation/827583/

CAID: N/A

gnomAD: N/A

VariantEvidence: These variants segregated in 6 patients of this family who developed VHL disease and were absent in 4 healthy tested descendants, indicating their presence on a single disease-associated allele. Sequencing of tumor DNA did not display loss of heterozygosity, suggesting that a WT VHL deletion (as observed in classic VHL disease) may not be a prerequisite in cells of patients with this specific VHL genotype.

MutationType: missense_variant;transition; splice_site_variant

CivicName: c.340+617C>G and c.340+648T>C

MultipleGeneVariants: Germline, VHL, c.340+617C>G

PatientID: II.6

KindredID: F8

Case: F, Age Unknown, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: 6/10 genetically tested family members across two generations were found to harbor the c.340+648T>C and c.340+617C>G germline mutations of the VHL gene. Patient I.2 presented with retinal capillary hemangioma, pheochromocytoma (pheo) and renal cell carcinoma. Patient I.3 presented with CNS hemangioblastoma and pheo. Patient II.1 presented with pheo. Patients II.2, II.6 and II.7 presented with retinal capillary hemangioma.

CasePresentingHPOs: HP:0009711 (Retinal capillary hemangioma)

CaseHPOFreeText: Presented with retinal capillary hemangioma. Tumor detected at age 16.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: c.340+617C>G

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 827582, https://www.ncbi.nlm.nih.gov/clinvar/variation/827582/

CAID: N/A

gnomAD: N/A

VariantEvidence: These variants segregated in 6 patients of this family who developed VHL disease and were absent in 4 healthy tested descendants, indicating their presence on a single disease-associated allele. Sequencing of tumor DNA did not display loss of heterozygosity, suggesting that a WT VHL deletion (as observed in classic VHL disease) may not be a prerequisite in cells of patients with this specific VHL genotype.

MutationType: missense_variant;transversion; splice_site_variant

CivicName: c.340+617C>G and c.340+648T>C

MultipleGeneVariants: Germline, VHL, c.340+648T>C