GroupID: 12A

Case: Sex, Age, Ethnicity unknown

DiseaseAssertion: VHL

FamilyInfo: None. The patient with the given mutation in this study was a VHL patient with pancreatic ICTs.

CasePresentingHPOs: HP:0030405 (pancreatic endocrine tumor)

CaseHPOFreeText: Patient has islet cell tumors (ICTs), or listed as pancreatic endocrine tumor.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.A122I (c.364_365delinsAT)

LegacyVariant: N/A

CaseProblemVariantFreeText: Authors report this as: c.364_365GC>AT; which can be translated to c.364_365delinsAT

ClinVarID: N/A

CAID: CA658820874 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.364_365delinsAT

gnomAD: N/A

VariantEvidence: N/A

MutationType: delins

CivicName: A122I (c.364_365delinsAT)

MultipleGeneVariants: N/A

53 patients with a molecularly confirmed VHL mutation (by PCR through EDTA-anticoagulated blood) and a pancreatic neuroendocrine tumor (ICT) were collected from the German NET-Registry and the German VHL-registry. An additional 296 patients were stated in this paper with a VHL associated germline mutation, but without pancreatic neuroendocrine tumors. 2 patients were found to have the above mutation (c.364_365delinsAT)). 1 was a VHL patient with ICT (pancreatic neuroendocrine tumor) taken from the VHL-registry. The other 1 patient was stated to be in this study with the given mutation, however no ICT. Other clinical manifestations outside of a pancreatic neuroendocrine tumor are possible, but were not discussed. ACMG evidence codes: 'PP2' because they observe a missense variant in a gene where missense variants are a common mechanism of disease.

Peripheral blood from unrelated patients with pheochromocytoma was tested for mutations of proto-oncogene RET, tumor suppressor gene VHL, succinate dehydrogenase subunit D (SDHD) gene, and the succinate dehydrogenase subunit B (SDHB) gene. Of 271 patients with nonsydromic pheochromocytoma and no family history of the disease, 30 mutations were found in VHL. Multiple pheochromocytomas were statistically more frequent among patients with mutations than among patients without mutations (21 of 66 vs. 5 of 205, P<0.001). The mutation A122I (c.364_365GC>AT) was detected in the patient, referred to in the paper by c.577_578GC>AT due to a difference in transcript sequence. This missense mutation was found in the VHL gene and one patient with pheochromocytoma.

PatientID: N/A

KindredID: 11

Case: Sex, Age, Ethnicity Unknown

DiseaseAssertion: pheochromocytoma

FamilyInfo: N/A

CasePresentingHPOs: HP:0002666 (pheochromocytoma)

CaseHPOFreeText: Nonsyndromic pheochromocytoma.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: RET, SDHB, SDHD

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.A122I (c.364_365delinsAT)

CaseProblemVariantFreeText: N/A

LegacyVariant: p.A122L (c.577_578GC>AT)

ClinVarID: N/A

CAID: CA658820874 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.364_365delinsAT

gnomAD: N/A

VariantEvidence: N/A

MutationType: delins

CivicName: A122I (c.364_365GC>AT)

MultipleGeneVariants: N/A