GroupID: 8

DiseaseAssertion: assumed VHL

GroupSize: 15

GroupNumberMales: N/A

GroupNumberFemales: N/A

GroupEthnicity: Chinese

GroupAgeRange: 36.9Y +/- 15.6Y

GroupInfo: Clinical characteristics of 258 patients from 80 unrelated Chinese families were reported in this study. Grouped by the 21 mutations found, 3 families with 15 members total were described, and phenotypic information was given for this group.

GroupPresentingHPOs: HP:0010797; HP:0009711; HP:0005584; HP:0001737; HP:0002666 (hemangioblastoma, retinal capillary hemangioma, renal cell carcinoma, pancreatic cysts, pheochromocytoma)

GroupHPOFreeText: 10 of the 15 members presented with CNS hemangioblastoma (mean age of 29.9Y), 2/15 had retinal capillary hemangiomas at 23Y and 30Y, renal cell carcinoma in 4 members (at a mean age of 41.5Y), pancreatic cysts in 5 members (with a mean age of onset of 41.4Y), and 1 member with pheochromocytoma at 38Y

GroupNotHPOs: HP:0009715 (papillary cystadenoma of the epididymis)

GroupNotHPOFreeText: No patients were given with papillary cystadenoma of the epididymis

GroupPreviousTesting: N/A

PreviouslyPublished: 29330336; 28388566

SupplementalData: N/A

Variant: p.N90I (c.269A>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 223172 https://www.ncbi.nlm.nih.gov/clinvar/variation/223172/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: N90I (c.269A>T)

MultipleGeneVariants: N/A

PatientID: II:3 (proband 4)

KindredID: 4

Case: M, 38Y0M, Chinese

DiseaseAssertion: VHL

FamilyInfo: Patient’s mother (I:1) was found with the same mutation and RCC at 63Y. The proband’s brother (II:1) died before diagnosis; thus no DNA sample available. He presented with hemangioblastoma at 19Y

CasePresentingHPOs: HP:0010797; HP:0009711 (hemangioblastoma, retinal capillary hemangioma)

CaseHPOFreeText: patient had hemangioblastoma at 22Y and retinal capillary hemangioma at 32Y

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.N90I (c.269A>T)

CaseProblemVariantFreeText: N/A

LegacyVariant: N/A

ClinVarID: 223172 https://www.ncbi.nlm.nih.gov/clinvar/variation/223172/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant; transversion

CivicName: N90I (c.269A>T)

MultipleGeneVariants: N/A

PatientID: I:1

KindredID: 4

Case: F, 63Y0M, Chinese

DiseaseAssertion: VHL

FamilyInfo: Patient’s one son (II:3) was found with the same mutation and hemangioblastoma at 22Y and retinal capillary hemangioma at 32Y. Her other son (II:1) died before diagnosis; thus no DNA sample available. He presented with hemangioblastoma at 19Y

CasePresentingHPOs: HP:0005584 (renal cell carcinoma)

CaseHPOFreeText: patient had RCC at 63Y

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.N90I (c.269A>T)

CaseProblemVariantFreeText: N/A

LegacyVariant: N/A

ClinVarID: 223172 https://www.ncbi.nlm.nih.gov/clinvar/variation/223172/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant; transversion

CivicName: N90I (c.269A>T)

MultipleGeneVariants: N/A

PatientID: I:1

KindredID: 4

Case: F, 63Y0M, Chinese

DiseaseAssertion: VHL

FamilyInfo: Patient’s one son (II:3) was found with the same mutation and hemangioblastoma at 22Y and retinal capillary hemangioma at 32Y. Her other son (II:1) died before diagnosis; thus no DNA sample available. He presented with hemangioblastoma at 19Y

CasePresentingHPOs: HP:0005584 (renal cell carcinoma)

CaseHPOFreeText: patient had RCC at 63Y

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.N90I (c.269A>T)

CaseProblemVariantFreeText: N/A

LegacyVariant: N/A

ClinVarID: 223172 https://www.ncbi.nlm.nih.gov/clinvar/variation/223172/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant; transversion

CivicName: N90I (c.269A>T)

MultipleGeneVariants: N/A

PatientID: 4

KindredID: 3

Case: M, 45Y0M, Arab

DiseaseAssertion: VHL

FamilyInfo: No family history of VHL disease was described for this patient. Immediate family members were recommended to genetically test for the relevant variant or monitor for VHL-related symptoms.

CasePresentingHPOs: HP:0006880; HP:0009713; HP:0000107; HP:0001737; HP:0000787 (cerebellar hemangioblastoma; spinal hemangioblastoma; renal cyst; pancreatic cysts; nephrolithiasis)

CaseHPOFreeText: At 40Y, Patient 4 was diagnosed with spinal and cerebellar hemangioblastomas, as well as multiple renal and pancreatic cysts. He was diagnosed with VHL disease type 1. At 43Y, renal cysts and stones were discovered. A year later, more spinal hemangioblastomas and renal stones were found. A year later, cerebellar lesions, as well as renal and pancreatic cysts were reported (see table 1).

CaseNotHPOs: HP:0002088; HP:0001392; HP:0005264; HP:0001743 (abnormal lung morphology; abnormality of the liver; abnormality of the gallbladder; abnormality of the spleen)

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

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData:  N/A

Variant: p.N90del (c.268_270del)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA645524783, https://reg.genome.network/redmine/projects/registry/genboree_registry/by_caid?caid=CA645524783

gnomAD: N/A

VariantEvidence: N/A

MutationType: inframe_deletion

CivicName: N90del (c.268_270del)

MultipleGeneVariants: N/A

A study investigated paraganglioma/pheochromocytoma tumors in a retrospective cohort and a prospective cohort. Some of these tumors were found with germline VHL mutations. Tumour ID 92 (from a patient who was 29 years old) was paraganglioma and a germline c.430G>C mutation in the VHL gene. Other phenotypic and demographic information was not available.

PatientID: None

KindredID: 1

Case: F, 35Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: Her family was genetically tested, and the same mutation was found in her 7 year-old daughter. Assumed de novo.

CasePresentingHPOs: HP:0410281; HP:0001737; HP:0005562; HP:0030423 (Dyspepsia, Pancreatic cysts, Multiple renal cysts, Splenic cyst)

CaseHPOFreeText: Admitted with long-standing dyspepsia and pancreatic cysts detected by ultrasound examination. There were no other symptoms, such as abdominal pain, weight loss, visual or hearing changes, headache or urinary complaints. The past medical and family histories were not of significance. There were no abnormal findings on examination.CT scan showed an enlargement of the pancreas, especially in the cephalic region, with heterogeneous density due to the presence of multiple hypodense nodules dispersed throughout the parenchyma. Abdominal MRI revealed several cysts. Endosonography that confirmed the presence of multiple simple cysts throughout the entirety of the pancreas as well as cysts in the left kidney and in the spleen. The findings described were compatible with simple cysts and pancreatic serous cystadenomas.

CaseNotHPOs: HP:0006880; HP:0009711; HP:0009713; HP:0005584; HP:0002666; HP:0030393 (Cerebellar hemangioblastoma, Retinal capillary hemangioma, Spinal hemangioblastoma, Renal cell carcinoma, Pheochromocytoma, Endolymphatic sac tumor)

CaseNotHPOFreeText: MRI of the brain and entire spine and no hemangioblastomas were detected. Abdominal MRI scan excluded renal carcinoma.The plasma and urinary catecholamines and the urinary vanilmandelic acid were normal, excluding pheochromocytoma. Examination of the retina and ear, nose and throat, including audiometry excluded angiomas of the retina and endolymphatic sac tumors, respectively.

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.N90I (c.269A>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 223172, https://www.ncbi.nlm.nih.gov/clinvar/variation/223172/

CAID: N/A

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: N90I (c.269A>T)

MultipleGeneVariants: N/A

PatientID: 1

KindredID: 1

Case: F, 6Y0M, Ethnicity Unknown

DiseaseAssertion: pheochromocytoma

FamilyInfo: No history - the only noteworthy point in her medical history being her conception through in vitro fertilization, however no noted concerns. This mutation was not present in either parent, indicating a de novo.

CasePresentingHPOs: HP:0002666 (pheochromocytoma)

CaseHPOFreeText: patient presented with a prolonged history of general malaise, headaches and abdominal pain. She was noted to have malignant hypertension. Subsequent imaging of the abdomen demonstrated a left adrenal mass (diagnosis of phaeochromocytoma confirmed by serial raised urinary metanephrines). Sympathetic blockade was established prior to definitive surgical treatment, resulting in complete resolution of the patient’s symptoms and hypertension.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.N90H (c.268A>C)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: N/A

CAID: CA351750708 https://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.268A%3EC

gnomAD: N/A

VariantEvidence: Neurofibromatosis type (NF) 1 was excluded on clinical grounds as she had none of the cutaneous features. Mutational analysis of the RET proto-oncogene was normal, making MEN2 unlikely. Sequencing of exons 1–3 of the VHL gene revealed a novel single base pair substitution (A268C).

MutationType: missense_variant;transversion

CivicName: N90H (c.268A>C)

MultipleGeneVariants: N/A

PatientID: III-3

KindredID: 1

Case: M, 25Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: Both of the patient’s uncles (Patient II-1 and II-4) were clinically diagnosed with VHL disease, and carried the mutation NM_000551.3:c.269A>T. Patient II-1 presented with RCCC at age 33 and cerebral hemangioblastoma at age 41. Patient II-4 presented with RCCC at age 53. The patient’s deceased father (Patient II‐3) and deceased aunt (Patient II‐5) were also clinically diagnosed with VHL disease, but the mutation was undetermined before death. His father died of advanced RCCC, and his aunt (Patient II‐5) died of a ruptured CH. The patient’s grandparents (Patient I-1 and I-2) were also deceased from other causes. The patient’s son (Patient IV‐1), wife (Patient III‐2), and mother (Patient II‐2) were healthy and did not carry the mutation. Their annual physical examination did not reveal a hemangioblastoma, kidney mass or abdominal cyst.

CasePresentingHPOs: HP:0006880 (Cerebellar hemangioblastoma)

CaseHPOFreeText: The 25Y male patient presented with occipital headache at 21Y. Upon initial examination, the patient was diagnosed with cerebellar hemangioblastoma and the tumour was resected. The patient completed outpatient follow‐up three years later. The occipital headache had disappeared, brain MRI showed no recurrence, and abdominal CT revealed no neoplasms.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.N90I (c.269A>T)

LegacyVariant: N/A

ClinVarID: 223172, https://www.ncbi.nlm.nih.gov/clinvar/variation/223172/

gnomAD: N/A

VariantEvidence: N/A

MutationType: missense_variant;transversion

CivicName: N90I(c.269A>T)

MultipleGeneVariants: N/A