PatientID: None (Cousin 1)

KindredID: G

Case: Sex Unknown, 37Y0M, Hungarian

DiseaseAssertion: Assumed VHL

FamilyInfo: Large VHL family spanning five generations. The index patient presented with pheochromocytoma, renal cell carcinoma as well as spinal cord, cerebellar, and medulla oblongata hemangioblastomas. Her parents showed no clinical, biochemical, or radiological evidence of the disease, but VHL-associated tumors were detected in five other family members (bilateral renal cell carcinomas in one, renal cysts in one, spinal cord, cerebellar, and medulla oblongata hemangioblastomas in three, retinal hemangioblastomas in four, and pheochromocytomas in two family members).

CasePresentingHPOs: HP:0010797; HP:0009711 (Hemangioblastoma, Retinal capillary hemangioma)

CaseHPOFreeText: Presented with CNS hemangioblastoma at age 37 and retinal hemangioblastoma at age 18. No VHL diagnosis noted but assumed to have VHL based on genetic, clinical and familial findings.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: 18416845

SupplementalData: N/A

Variant: p.S80I (c.239G>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 625229, https://www.ncbi.nlm.nih.gov/clinvar/variation/625229/

CAID: N/A

gnomAD: N/A

VariantEvidence: Variant reported as S80I and cDNA change was mapped to c.239G>T.

MutationType: missense_variant;transversion

CivicName: S80I (c.239G>T)

MultipleGeneVariants: N/A

PatientID: 7

KindredID: 7

Case: F, 26Y0M, Ethnicity Unknown

DiseaseAssertion: assumed VHL

FamilyInfo: Positive family history of VHL.

CohortInfo: An international consortium registered patients with head and neck paragangliomas with VHL or RET gene mutations.

CasePresentingHPOs: HP:0000618; HP:0009711; HP:0010797; HP:0002668 (blindness, retinal capillary hemangioma, hemangioblastoma, paraganglioma)

CaseHPOFreeText: At 15Y she presented with loss of visual acuity, leading to the diagnosis of bilateral retinal hemangioblastomas (treated with laser and cryotherapy), with the outcome of unilateral blindness. The patient was then operated 3 times for CNS hemangioblastomas between ages 18 and 24. At age 26, she presented with a palpable lateral neck mass. CT of the head and neck revealed a 3-cm carotid body tumor (paraganglioma).

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: RET

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.T105P (c.313A>C)

LegacyVariant: p.T105P

CaseProblemVariantFreeText: As the publication only provides the p., the mutation was deduced to p.T105P (c.313A>C)

ClinVarID: 496055 https://www.ncbi.nlm.nih.gov/clinvar/variation/496055/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant; transversion

CivicName: T105P (c.313A>C)

MultipleGeneVariants: N/A

PatientID: 49 (Cousin)

KindredID: 18

Case: F, 62Y0M, Ethnicity Unknown

DiseaseAssertion: 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:0009711; HP:0005584; HP:0010797 (Pheochromocytoma, Retinal capillary hemangioma, Renal cell carcinoma, Hemangioblastoma)

CaseHPOFreeText: This patient presented with retinal angioma (18Y) and pheochromocytoma (20Y). Age of diagnosis of CNS hemangioblastoma and renal cell carcinoma is unknown.

CaseNotHPOs: HP:0000077; HP:0001732 (Abnormality of the kidney, Abnormality of the pancreas)

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: p.R167W (c.499C>T)

LegacyVariant: c.712C>T

CaseProblemVariantFreeText: N/A

ClinVarID: 2218, https://www.ncbi.nlm.nih.gov/clinvar/variation/2218/

CAID: N/A

gnomAD: 0.000007954, https://gnomad.broadinstitute.org/variant/3-10191506-C-T?dataset=gnomad_r2_1

VariantEvidence: A point mutation (c.712C>T) was found. Being that this 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: missense_variant;transition

CivicName: R167W (c.499C>T)

MultipleGeneVariants: N/A