PatientID: 2

KindredID: 2

Case: F, 52Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: A family pedigree is provided. Both the mother and daughter of patient 2 were found to have the same mutation. Neither the 61-year-old mother, nor the 6-year-old daughter had RCHs. The mother had other tumours, which were not specified.

CasePresentingHPOs: HP:0001737; HP:0031152 (Retinal capillary hemangioma; full-thickness macular hole)

CaseHPOFreeText: The patient underwent a retinal examination at 42Y0M due to a lesion in her left eye. This eyes had 20/25 vision snd a peripheral retinal capillary hemangioma (RCH) was detected in this left eye and laser was performed. A week later it turned into a lamellar macular hole and she underwent a vitrectomy, her vision also got worse. In her follow up appointment in 2014, a retinal tear was detected and treated with laser. In 2019, the left eye did not develop any lesions (table 1).

CaseNotHPOs: N/A

CaseNotHPOFreeText: Patient did not seem to have have any other tumours.

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P192L (c.575C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 526677, https://www.ncbi.nlm.nih.gov/clinvar/variation/526677/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant; transition

CivicName: P192L (c.575C>T)

MultipleGeneVariants: N/Afa

PatientID: 47 (Uncle)

KindredID: 18

Case: M, 39Y0M, Ethnicity Unknown

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

CaseHPOFreeText: This patient presented with CNS hemangioblastoma (30 and 42Y) and retinal angioma (26Y). Patient died at 39Y.

CaseNotHPOs: HP:0005584; HP:0000077; HP:0001732; HP:0002666 (Renal cell carcinoma, Abnormality of the kidney, Abnormality of the pancreas, Pheochromocytoma)

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: N/A

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: N/A

gnomAD: N/A

VariantEvidence: Authors state that the c.712C>T germline familial variant of the VHL gene in this patient is “inferred from the family”. No genetic testing was done on this patient to confirm this. Being that this familial 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: N/A

CivicName: N/A

MultipleGeneVariants: N/A