PatientID: 5299

KindredID: 235

Case: Sex Unknown, Age Unknown, French

DiseaseAssertion: VHL

FamilyInfo: N/A

CohortInfo: Families were recruited from the French VHL Registry. Enrolment in the study required identification of the germline VHL mutation (currently 85% of the families included in the French VHL Registry) and available data regarding renal phenotype. A total of 126 families fulfilled these criteria.

CasePresentingHPOs: HP:0009726 (Renal neoplasm)

CaseHPOFreeText: Mild renal disease (simple renal cyst, multicystic kidney[s], small lesion [less than 10 mm in size] of unknown significance, or small solid tumor without indication for surgical removal [less than 30 mm in size]). Individual RCC phenotype is noted as negative.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: Paper states that this family is previously reported in PMID 12202531 and/or 9829912, where 1 and 1 individuals respectively with an equivalent mutation (i.e. 473insT) are reported. It is unclear if one or both of these previously reported groups are the same as the current family.

SupplementalData: Phenotype and genotype information can be found in Supplementary Table S1.

Variant: p.K159Efs*15 (c.473dup)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA432423097, https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.473dup

gnomAD: N/A

VariantEvidence: N/A

MutationType: duplication; plus_1_frameshift_variant

CivicName: K159Efs*15 (c.473dup)

MultipleGeneVariants: N/A

PatientID: None

KindredID: 1

Case: M, 22Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: No notable family history.

CasePresentingHPOs: HP:0000541; HP:0010797; HP:0009711; HP:0030424; HP:0005562; HP:0001737 (Retinal detachment, Hemangioblastoma, Retinal capillary hemangioblastoma, Epididymal cyst, Multiple renal cysts, Pancreatic cysts)

CaseHPOFreeText: Complained of a shadow in his right eye and was diagnosed with retinal detachment secondary to a retinal hemangioblastoma. MRI of the brain revealed a hyper vascular lesion in the medulla and a smaller lesion at the medullary-spinal cord junction. Weighted abdominal MRI revealed innumerable pancreatic cysts and multiple benign-appearing renal cysts. After surgical resection of the retinal hemangioblastoma, the patient remains asymptomatic.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.K159* (c.474_475insT)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA432423112, https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.474_475insT

gnomAD: N/A

VariantEvidence: Reported as: NT474INST. Authors state that this is believed to be a novel sporadic mutation.

MutationType: insertion; plus_1_frameshift_variant; stop_gained

CivicName: K159* (c.474_475insT)

MultipleGeneVariants: N/A

PatientID: A (Tumor 2)

KindredID: 1

Case: F, 57Y0M, Ethnicity Unknown

DiseaseAssertion: assumed VHL

FamilyInfo: This kindred with a VHL germline deletion was studied. Apparently inherited from her father and paternal grandmother as they were affected, and passed to daughter but no phenotypic data was provided for these familials. Her sister and nephew also presented with hemangioblastomas and this germline deletion, and further somatic details were studied.

CasePresentingHPOs: HP:0006880 (cerebellar hemangioblastoma)

CaseHPOFreeText: 2 cerebellar HB surgically resected at 57Y and found with somatic mutations in both tumors

CaseNotHPOs: N/A

CaseNotHPOFreeText: no VHL-associated visceral malignancies in the patient

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.K159E (c.475A>G)

LegacyVariant: c.8678 (p.Lys159Glu)

CaseProblemVariantFreeText: A somatic mutation in exon 3 (nt: c.8678 (p.Lys159Glu)) via Latif et al.’s (1993) old transcript) was used.

ClinVarID: 825149 https://www.ncbi.nlm.nih.gov/clinvar/variation/825149/

CAID: N/A

gnomAD: N/A

VariantEvidence: unspecified germline deletion as demonstrated by FISH analysis. “Second-hit” tumorigenesis displayed due to somatic mutation found, which was not predicted by the specific germline deletion nor by the overall genetic composition of the patient. Both of this patient’s cerebellar tumors had somatic mutations.

MutationType: missense_variant; transition

CivicName: Deletion

MultipleGeneVariants: Germline, VHL, deletion; Somatic, VHL, c.903_904insT (p.*151)