PatientID: CIV:7

KindredID: C

Case: F, 29Y0M, Chinese

DiseaseAssertion: assumed VHL

FamilyInfo: A 4-generation family is given with 3 confirmed members with this mutation. 3 additional members had VHL-presenations however had not been tested for the gene.

CasePresentingHPOs: HP:0002666; HP:0010797 (pheochromocytoma, hemangioblastoma)

CaseHPOFreeText: initially diagnosed by genetic analysis and further verified radiologically and surgically - found with CNS hemangioblastomas and pheochromocytoma at 29Y.

CaseNotHPOs: HP:0005584; HP:0001737; HP:0009711 (renal cell carcinoma, pancreatic cysts, retinal capillary hemangioma)

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

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

LegacyVariant: p.S80I (c.452G>T)

CaseProblemVariantFreeText: N/A

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

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant; transversion

CivicName: S80I (c.239G>T)

MultipleGeneVariants: N/A

PatientID: 1

KindredID: 1

Case: F, 44Y0M, Ethnicity Unknown

DiseaseAssertion: assumed VHL

FamilyInfo: The patient has a notable family history. Her eldest brother had multiple RCCs in both kidneys, bilateral cerebellar hemangioblastomas, and pheochromocytoma in his left adrenal gland (see Patient 2). Her daughter also underwent cortex-sparing adrenalectomies for bilateral pheochromocytomas as well as hemangioblastoma resection in her left cerebellum at age of 19 years, although no testing for VHL was stated.

CasePresentingHPOs: HP:0006748, HP:0030405, HP:0006880, HP:0000107, HP:0005584 (adrenal pheochromocytomas, pancreatic endocrine tumour, cerebellar hemangioblastoma, renal cyst, renal cell carcinoma)

CaseHPOFreeText: Patient diagnosed at age 29 with bilateral pheochromocytomas when she presented with severe hypertension and two large masses (greater than 6 cm) in her bilateral adrenal glands. At 38 years old, she underwent a resection for a mass found on her pancreas, with pathological analysis of the mass revealing a pancreatic neuroendocrine tumor. At 42 years old, a follow-up CT scan revealed two heterogeneous contrast-enhanced masses, one on the right kidney and one on the left adrenal gland.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

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

LegacyVariant: N/A

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

CAiD: CA16621914 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.239G%3ET

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant; transversion

CivicName: S80I (c.239G>T)

MultipleGeneVariants: N/A

A retrospective cohort study included all the VHL patients diagnosed at Peking University First Hospital (Beijing, China) prior to June 1 2016. A total of 291 patients from 115 different families were included for analysis. A 33Y male patient (patient #40, family #13) was confirmed for a missense mutation in the VHL gene (c.239G>T; p.Ser80Ile). He was diagnosed with renal cell carcinoma at 31Y, multiple pancreatic cysts or tumours at 31Y, pheochromocytoma at 31Y, and retinal angioma at 33Y. No family history is reported. This patient was also published in a paper by Wang et al., 2018 (PMID: 29330336).

Nine Chinese index patients were referred for the molecular analysis of VHL based on clinical suspicion. PCR and MLPA were performed on whole blood. Proband 9 presented with VHL disease type 2B, and was found to have a CNS hemangioblastoma at age 26. They were found to have a c.239G>T [p.Ser80Ile] mutation in the VHL gene. Proband 9 underwent prenatal testing twice, which revealed the presence of the same mutation in their 2 fetus children.

PatientID: None

KindredID: VHL2

Case: M, 33Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: N/A

CohortInfo: A total of 190 patients recruited by the COMETE network over 15 years were included in the study.

CasePresentingHPOs: HP:0002666 (Pheochromocytoma)

CaseHPOFreeText: The patient had one benign pheochromocytoma.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: RET/SDHB/SDHC/SDHD

PreviouslyPublished: N/A

SupplementalData: Table 1 of Supplementary

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: The patient had LOH found in the BAC array CGH data.

MutationType: missense_variant;transversion

CivicName: S80I (c.239G>T)

MultipleGeneVariants: N/A

PatientID: None (Cousin 2)

KindredID: G

Case: Sex Unknown, 38Y0M, 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; HP:0002666 (Hemangioblastoma, Retinal capillary hemangioma, Pheochromocytoma)

CaseHPOFreeText: Presented with CNS hemangioblastoma at age 38, pheochromocytoma at age 39 and retinal hemangioblastoma at age 29. 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