PatientID: 1

KindredID: 1

Case: M, 51Y0M, Arab

DiseaseAssertion: VHL

FamilyInfo: Patient 2 (the patient’s brother) presented with the same mutation and was diagnosed with VHL at age 45. The two brothers had very similar VHL clinical manifestations including cerebellar hemangioblastomas, renal cell carcinoma, and cysts in the pancreas. However, patient 1 had testicular and epididymal cysts, as well as lesions in the spine, which were absent in Patient 2. No other family history was noted. Immediate family members were recommended to genetically test for the relevant variant or monitor for VHL-related symptoms.

CasePresentingHPOs: HP:0005584; HP:0009713; HP:0006880; HP:0000107; HP:0001737; HP:0030424; HP:0033608; HP:0000541; HP:0012215 (renal cell carcinoma; spinal hemangioblastoma; cerebellar hemangioblastoma; renal cyst; pancreatic cysts; epididymal cyst; pulmonary nodule; retinal detachment; testicular microlithiasis)

CaseHPOFreeText: At 44Y, Patient 1 exhibited cerebellar and spinal hemangioblastomas, as well as retinal detachment. He also had renal cell carcinoma in both kidneys and multiple cysts in one kidney, testis, and pancreas. He also reported a history of headaches and vertigo, leading to a diagnosis of VHL disease type 1. At 49Y, multiple nodules were found in his lungs and a year later, a nodule in the testis and scrotal lithiasis were detected. At 51Y, renal cell carcinoma was identified in the left kidney and his left epididymis was enlarged. Patient continued to present with left testicular and scrotal lithiasis, right retinal detachment, and multiple nodules in both lungs. However, tMutation:Germlinehe lung phenotype was asymptomatic (see table 1).

CaseNotHPOs: HP:0001392; HP:0005264; HP:0001743 (abnormality of the liver; abnormality of the gallbladder; abnormality of the spleen)

CaseNotHPOFreeText: No lesions were observed in the liver, gallbladder, and spleen.

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData:  N/A

Variant: p.F76del (c.227_229del)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA357012, https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.227_229delTCT

gnomAD: N/A

VariantEvidence: N/A

MutationType: inframe_deletion

CivicName: F76del (c.227_229del)

MultipleGeneVariants: N/Av

PatientID: 208

KindredID: 79

Case: M, 49Y0M, Chinese

DiseaseAssertion: VHL

FamilyInfo: The proband's mother and sister had a CNS hemangioblastoma at ages 40 and 50, respectively. His nephew presented with a CNS hemangioblastoma (age 15), a retinal angioma (age 27), and renal cell carcinoma (age 25). His daughter had a retinal angioma at age 14, and a CNS hemangioblastoma at age 24. No genetic testing information was available for family members.

CasePresentingHPOs: HP:0010797; HP:0001737; HP:0001732; HP:0002666; HP:0005584 (Hemangioblastoma, Pancreatic cysts, Abnormality of the pancreas, Pheochromocytoma, Renal cell carcinoma)

CaseHPOFreeText: The proband presented with a CNS hemangioblastoma at age 29. At age 46, they presented with renal cell carcinoma and a pheochromocytoma. At age 49 they presented with multiple pancreatic cysts/tumors.

CaseNotHPOs: HP:0009711; (Retinal Capillary Hemangioma)

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: Kindred #79 was published in Wang et al., 2014 (PMID: 24581539). This cohort was also published in a later paper by Wang et al., 2018 (PMID: 29330336).

SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

Variant: p.R167Q (c.500G>A)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2216, https://www.ncbi.nlm.nih.gov/clinvar/variation/2216/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: R167Q (c.500G>A)

MultipleGeneVariants: N/A

PatientID: None (Proband)

KindredID: 1

Case: F, 49Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: Her daughter and son both had the same VHL gene mutation.

CasePresentingHPOs: HP:0008261, HP:0005584, HP:0006737, HP:0100561 (Pancreatic islet cell adenoma, renal cell carcinoma, Extraadrenal pheochromocytoma, spinal cord lesion )

CaseHPOFreeText: The patient was screened for disease manifestations. Abdominal magnetic resonance imaging (MRI) and computerized tomography (CT) showed pancreatic and renal masses and a para-aortic mass. At laparotomy a benign islet cell tumor, an encapsulated renal cell carcinoma of low nuclear grade and an extra-adrenal pheochromocytoma were removed. At 27 months postoperatively the patient presented with back pain and clinical signs of spinal cord compression at the T9 level. No other primary tumors could be detected despite extensive radiological investigation. Intravertebral biopsy demonstrated metastatic renal cell cancer. The spinal lesion did not respond to radiotherapy. The patient died 31 months after diagnosis and postmortem examination was declined.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P86L (c.257C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 182977, https://www.ncbi.nlm.nih.gov/clinvar/variation/182977/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: P86L (c.257C>T)

MultipleGeneVariants: N/A