PatientID: None

KindredID: 1

Case: F, 71Y0M, Danish

DiseaseAssertion: Asymptomatic

FamilyInfo: The patient's father died of acute myeloid leukaemia at age 63. The patient had four children one of whom had the same VHL mutation as her and presented with breast cancer. That child had three sons all of whom carried the VHL mutation. Two of the sons were asymptomatic and one had renal cell carcinoma. The affected son also had a P2P mutation. See Figure 1 for family pedigree.

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName:P81S (c.241C>T)

MultipleGeneVariants: N/A

PatientID: None

KindredID: 1

Case: M, 32Y0M, Danish

DiseaseAssertion: Asymptomatic

FamilyInfo: The patient's brother carried the mutation and presented with renal cell carcinoma. The patient's paternal uncle died from metastasizing RCC at 46 years of age, and the proband’s father died from urosepsis in relation to bladder cancer in situ at the age of 56. Neither of these men were able to undergo genetic testing. The patient's mother was found to carry the mutation and had breast cancer. The maternal grandmother as well as a half brother were found to harbour the mutation but were asymptomatic. See Figure 1 for family pedigree.

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName:P81S (c.241C>T)

MultipleGeneVariants: N/A

PatientID: 31

KindredID: 31

Case: M, 32Y0M, Ethnicity Unknown

DiseaseAssertion: Assumed VHL

FamilyInfo: No details on family information.

CasePresentingHPOs: HP:0010797 (hemangioblastoma)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: c.454C>T

CaseProblemVariantFreeText: N/A

ClinVarID: 2233, https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179, https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant; transition

CivicName: P81S (c.241C>T)

MultipleGeneVariants: N/A

PatientID: 3

KindredID: C

Case: F, 40Y0M, Ethnicity Unknown

DiseaseAssertion: Hemangioblastoma

FamilyInfo: Positive: The patient’s sister, one of two brothers, and mother each had the same germline mutation, although without any manifestations. As such, her family history was negative for kidney cancer, hemangioblastoma, or other features of VHL. See Fig. 3.

CasePresentingHPOs: HP:0006880 (cerebellar hemangioblastoma)

CaseHPOFreeText: In 2013, at 32Y, patient presented with a hemangioblastoma in her cerebellar region.

CaseNotHPOs: N/A

CaseNotHPOFreeText: No other VHL- related tumors are present in this patient.

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: Yes

Variant: p.P81S (c.241C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: Immunohistochemistry was positive for Inhibin, and negative for RCC, GFAP, and OLIG2.

MutationType: missense_variant; transition

CivicName: P81S (c.241C>T)

MultipleGeneVariants: Somatic, VHL, c.188_188T>TG (p.Leu63fs*4)

PatientID: None

KindredID: 1

Case: M, 77Y0M, ethnicity unknown

DiseaseAssertion: asymptomatic

FamilyInfo: DNA analysis of other close relatives showed that three clinically unaffected first and second degree relatives (aged 17-77 years) were also carriers of a P81S germline mutation, and one with cerebellar hemangioblastomas. See Figure 3 for pedigree.

CasePresentingHPOs: None.

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: 8956040; 9829911; 8634692; 17661816 (mentioned as a group)

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: p.P81S (c.454C>T)

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: P81S (c.241C>T)

MultipleGeneVariants: N/A

PatientID: None

KindredID: 1

Case: M, 34Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: None.

CasePresentingHPOs: HP:0000957, HP:0000997, HP:0009737, HP:0006880, HP:0010797, HP:0200034, HP:0005306, HP:0001067 (Cafe-au-lait spot, Axillary freckling, Lisch nodules, cerebellar hemangioblastoma, hemangioblastoma, Papule, Capillary hemangioma, Neurofibromas)

CaseHPOFreeText: Referred to dermatology for multiple bleeding papules, the lesions of concern were exophytic, red, vascular papules located on the right jawline, front of the right shoulder, left lower aspect of the back, and right lower aspect of the back, consistent with lobular capillary hemangiomas. The patient was given the diagnosis of NF1 based on clinical findings that were first noted in childhood including multiple café au lait macules, axillary freckling, and Lisch nodules. VHL was suspected after magnetic resonance imaging showed hemangioblastoma of the left cerebellum during evaluation of sensorineural hearing loss. On the face, trunk, and extremities there were at least 20 scattered well-defined, ovoid, light-brown macules. Involving the chest, abdomen, and back were multiple discrete 4- to 8-mm subcutaneous rubbery-soft nodules. Axillary freckling was noted on both axilla and the groin.

CaseNotHPOs: N/A

CaseNotHPOFreeText: He did not have any additional tumors or cysts in the central nervous system or visceral organs that are common in VHL.

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S(c.241C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: P81S(c.241C>T)

MultipleGeneVariants: N/A

Study of a German family of 16 family members with cosegregation of the pheochromocytoma-only phenotype with two concurrent germline mutations in the VHL protein alpha and beta domains. These mutations were c.562 C>T (stated as 775C>G in the paper which used the Latif sequence as reference) and c.241C>T (stated as 454C>T in the paper). Patient 1 was unaffected and had the wild-type allele. His spouse, patient 2, presented with pheochromocytoma and had both mutations. They had four children; one had a pheochromocytoma and died, two (patients 5 and 7) had both mutations and presented with pheochromocytomas, and one child (patient 6) was unaffected and carried neither mutation. Patient 7 had a child (patient 9) who also carried both mutations and presented with pheochromocytoma. In the other branch of the family, patient 3 who carried both mutations and presented with pheochromocytoma had a child with patient 4 who was unaffected. Their child (patient 8) carried both mutations and presented with pheochromocytoma. Patient 8 had two children; one who did not carry the mutation and was unaffected (patient 10) and another that carried both mutations but was disease-free (patient 11). DNA was isolated with whole blood and denaturing high-performance liquid chromatography (DHPLC) and dye terminator method on an ABI Prism 310 genetic analyzer (Applied Biosystems, Weiterstadt, Germany) were used for sequencing. Cosegregation with disease in multiple affected family members in a gene definitively known to cause the disease (ACMG code: PP1).

GroupID/KindredID: 5959

DiseaseAssertion:VHL

GroupSize: 2

GroupNumberMales: N/A

GroupNumberFemales: N/A

GroupEthnicity: N/A

GroupAgeRange: N/A

GroupInfo: These two patients were from the same family (5959) and both had the same VHL gene mutations.

GroupPresentingHPOs: HP:0002666; HP:0009711; HP:0030405 (Pheochromocytoma, Retinal capillary hemangioma, Pancreatic endocrine tumor)

GroupHPOFreeText: One patient in this family had a pheochromocytoma and cysts (type of cyst was not specified). Both patients had retinal angioma. It is unclear how many of the patients had pancreatic endocrine tumors.

GroupNotHPOs: HP:0005584; HP:0010797 (Renal cell carcinoma, Hemangioblastoma)

GroupNotHPOFreeText: N/A

GroupPreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

CaseProblemVariantFreeText: N/A

LegacyVariant: c.454C>T

ClinVarID: 2233, https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179, https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: Variant reported as 454, C to T (Pro to Ser), assumed to be reported in legacy nomenclature (AF010238.1) and mapped to c.241C>T, p.Pro81Ser (NM_000551.3).

MutationType: missense_variant;transition

CivicName: P81S (c.241C>T)

MultipleGeneVariants: Germline, VHL, c.562C>G (p.Leu188Val)

This paper analyzed VHL sequences in the renal cell carcinomas of patients exposed to high, cumulative doses of trichloroethylene. Whole blood and tumour tissues were isolated and mutations were identified, respectively, by direct sequencing of purified PCR products. For fast analysis of the presence of a frequent mutation at nt 454 (C>T), a restriction endonuclease-based assay (enzyme AciI based assay) was used.Four patients (1654, 1656, 1658, and 1695) were found to have the germline P81S (c. 241C>T) (denoted as nt454 C>T mutation in the paper) VHL mutation in DNA isolated from tumor-adjacent normal kidney parenchyma. All four patients presented with renal cell carcinoma and were diagnosed respectively at ages 59, 70, 66, 38 (1654, 1656, 1658, 1695). Three of the four patients (1654,1658, 1695) had multiple somatic VHL mutations and LOH. Patient 1656 only had the one germline mutation in the VHL gene.

PatientID: II.1

KindredID: 3

Case: M, 50Y0M, Ethnicity Unknown

DiseaseAssertion: VHL

FamilyInfo: He inherited the p.Pro81Ser mutation from his healthy father (I.1) and the other mutation occured de novo. The patient had a son (III.1) who inherited his germline VHL large deletion, but not the VHL p. Pro81Ser variant. The son also had another VHL mutation which he inherited from his healthy mother (II.2). The son presented with retinal and cerebellar hemangioblastomas as well as pancreatic cysts. Refer to figure 1, pedigree C for family information.

CohortInfo: Patients were registrants from the European-American Pheochromocytoma-Paraganglioma and German von Hippel-Lindau Disease Registries.

CasePresentingHPOs: HP:0010797, HP:0001737 (hemangioblastoma, pancreatic cysts)

CaseHPOFreeText: Presented with hemangioblastoma at age 50.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: RET/SDHB/SDHD/SDHC

PreviouslyPublished: May have been previously published in 11106358 and/or 7563486.

SupplementalData: Yes, File 1 for methods.

Variant: p.P81S(c.241C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: The patient was hemizygous for this mutation.

MutationType: missense_variant;transition

CivicName: Exon 1-3 Deletion and P81S (c.241C>T)

MultipleGeneVariants: Germline, VHL, Exon 1-3 deletion

PatientID: I.1

KindredID: 3

Case: M, Age Unknown, Ethnicity Unknown

DiseaseAssertion:Asymptomatic

FamilyInfo: The patient had a son who he passed this mutation to. The son (II.1) presented with hemangioblastoma and pancreatic cysts and had an additional de novo exon 1-3 deletion. Refer to figure 1, pedigree C for family information.

CohortInfo: Patients were registrants from the European-American Pheochromocytoma-Paraganglioma and German von Hippel-Lindau Disease Registries.

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: RET/SDHB/SDHD/SDHC

PreviouslyPublished: May have been previously published in 11106358 and/or 7563486.

SupplementalData: Yes, File 1 for methods.

Variant: p.P81S(c.241C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: P81S(c.241C>T)

MultipleGeneVariants: N/A

All patients included in the study were VHL mutation carriers of 18 years or older examined between 1972 and 2012 in the VHL expertise centers University Medical Center Groningen (UMCG) and University Medical Center Utrecht (UMCU). Clinical data of 75 VHL mutation carriers were retrospectively retrieved from electronic and written patient record. Of these patients, one was found to harbour the c.241C>T germline mutation of the VHL gene. They presented with a retinal hemangioblastoma, cerebellar hemangioblastoma, spinal hemangioblastoma, renal cell carcinoma, pancreatic neuroendocrine tumor, renal cyst and pheochromocytoma. Their age at the last follow-up was 59. Previously published in: PMID 24132471.

3 unrelated patients with unexpected or non-syndromic phenotypes, accompanied by a VHL component tumor received germline gene panel testing as part of the PROACTIVE study at the Dana-Farber Cancer Institute, each detected with a low penetrant variant. At age 32, patient 3 (female) presented with posterior headaches, which a CT scan and MRI revealed to be a cerebellar hemangioblastoma. Treatment involved a gross total resection of the lesion. Somatic testing of a left cerebellar mass revealed a somatic VHL variant: p.Leu63fs*4 (c.188_188T>TG); updated to p.R64fs (c.189dupG). Single gene testing of VHL revealed a heterozygous germline VHL p.Pro81Ser (c.241C>T) variant. To this day at age 40, she continues to be monitored. Her mother (age 72) and two of her three siblings (ages 38 and 36) carry the same VHL p.Pro81Ser variant, but have been negative for hemangioblastoma or any other VHL component tumor. ACMG: PP4

A cohort of 141 patients with hemangioblastomas of the central nervous system was analyzed. 81 patients had germline mutations in the VHL gene, analyzed through peripheral blood by Southern blotting and SSCP analysis. This missense mutation (c.241C>T) was recorded in the paper as c.454C>T due to a difference in transcript sequence. It was found in 1 patient with a hemangioblastoma of the central nervous system. Any family information is unknown. No other phenotypes described.

PatientID: D24

KindredID: 1

Case: F, 47Y0M, ethnicity unknown

DiseaseAssertion: cerebellar hemangioblastoma

FamilyInfo: DNA analysis of other close relatives showed that four clinically unaffected first and second degree relatives (aged 17-77 years) were also carriers of a P81S germline mutation. See Figure 3 for pedigree.

CasePresentingHPOs: HP:0006880 (cerebellar hemangioblastoma)

CaseHPOFreeText: patient had a single cerebellar HAB

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: 8956040; 9829911; 8634692; 17661816 (mentioned as a group)

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: p.P81S (c.454C>T)

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: P81S (c.241C>T)

MultipleGeneVariants: N/A

Data was collected from 82 VHL mutation carriers in the Dutch VHL surveillance program. Two patients were found with the missense mutation, c.241C>T, in the VHL gene. One patient was 34Y and the other was 59Y at last follow-up. Their phenotypes were grouped together: retinal hemangioblastoma, cerebellar hemangioblastoma, spinal cord hemangioblastoma, renal cell carcinoma, pancreatic neuroendocrine tumour, pheochromocytoma, and renal cysts. Family history was not described. The group was classified as a 2a/b which was described by the author to included de novo VHL mutation carriers or VHL mutation carriers having a family history with diagnosis of pheochromocytoma and other VHL related manifestations.

GroupID:None

DiseaseAssertion:VHL

GroupSize: 2

GroupNumberMales: N/A

GroupNumberFemales: N/A

GroupEthnicity: Dutch

GroupAgeRange: 34-59

GroupInfo: 2 out of 82 individuals were grouped together based on all having the c.241C>T mutation. This group was classified as 2a/b meaning that it included de novo VHL mutation carriers or VHL mutation carriers having a family history with diagnosis of pheochromocytoma and other VHL related manifestations.

GroupPresentingHPOs: HP:0009711, HP:0006880, HP:0009713, HP:0005584, HP:0030405, HP:0002666, HP:0000107 (Retinal capillary hemangioma, Cerebellar hemangioblastoma, Spinal hemangioblastoma, Renal cell carcinoma, Pancreatic endocrine tumor, Pheochromocytoma, Renal cyst)

GroupHPOFreeText: It is unclear if both patients in this group had all of these presentations or if they were only affected by a subset.

GroupNotHPOs: N/A

GroupNotHPOFreeText: N/A

GroupPreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

CaseProblemVariantFreeText: N/A

LegacyVariant: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: P81S (c.241C>T)

MultipleGeneVariants: N/A

PatientID: None

KindredID: 1

Case: M, 36Y0M, Danish

DiseaseAssertion: Asymptomatic

FamilyInfo: The patient's half brothers both carried the mutation, one was asymptomatic and one had renal cell carcinoma. The patient's mother was found to carry the mutation and had breast cancer. The maternal grandmother also harboured the mutation but was asymptomatic. See Figure 1 for family pedigree.

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName:P81S (c.241C>T)

MultipleGeneVariants: N/A

PatientID: None

KindredID: 1

Case: F, 52Y0M, Danish

DiseaseAssertion: Breast carcinoma

FamilyInfo: The patient had three sons all of whom carried the VHL mutation. Two of the sons were asymptomatic and one had renal cell carcinoma. The affected son also had a P2P mutation and he had a child who was found to have the VHL mutation (P2P). The patient's mother had the mutation but was also asymptomatic. See Figure 1 for family pedigree.

CasePresentingHPOs: HP:0003002 (Breast carcinoma)

CaseHPOFreeText: The patient had breast cancer at age 34.

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: N/A

CaseProblemVariantFreeText: N/A

ClinVarID: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: N/A

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName:P81S (c.241C>T)

MultipleGeneVariants: N/A

PatientID: 5

KindredID: 1

Case: F, Age Unknown, German

DiseaseAssertion: VHL

FamilyInfo: The patient's father (patient 1) was unaffected and did not carry the mutation. The patient's mother (patient 2) presented with pheochromocytoma and carried the mutation. The patient had three siblings; one died and was affected, another (patient 7) had both mutations and presented with pheochromocytoma, and the third (patient 6) was unaffected and carried neither mutation. Patient 7 had a child (patient 9) who also carried both mutations and presented with pheochromocytoma. The patient's uncle (patient 3) carried the mutation and was affected. He had a child with patient (4) who was unaffected. Their child (patient 8) carried both mutations and presented with pheochromocytoma. Patient 8 had two children; one that did not carry the mutation and was unaffected (patient 10) and another that carried both mutations but was disease free (patient 11). See Figure 3 for family pedigree.

CasePresentingHPOs: HP:0002666 (pheochromocytoma)

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: 8772572, 7563486

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: P81S (c.454C>T)

CaseProblemVariantFreeText: N/A

ClinVar: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: CA020148 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.241C%3ET

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: P81S (c.241C>T) and L188V (c.562C>G)

MultipleGeneVariants: Germline, VHL, c.562C>G (p.Leu188Val)

PatientID: 11

KindredID: 1

Case: M, Age Unknown, German

DiseaseAssertion: Asymptomatic

FamilyInfo: The patient's father (patient 8) was had both mutations and presented with pheochromocytoma. The patient's brother (patient 10) did not carry the mutation and was unaffected. The patient's maternal grandfather (patient 3) presented with pheochromocytoma and carried both mutations. The patient's materal grandmother (patient 4) was unaffected and did not carry either mutation. The patient's great aunt (patient 2) presented with pheochromocytoma and had both mutations. Her husband (patient 1) was unaffected and did not carry either mutation. They had four children; one died and presented with pheochromocytoma, two (patient 5 and 7) had both mutations and presented with pheochromocytoma, and one child (patient 6) was unaffected and carried neither mutation. Patient 7 had a child (patient 9) who also carried both mutations and presented with pheochromocytoma. See Figure 3 for family pedigree.

CasePresentingHPOs: N/A

CaseHPOFreeText: N/A

CaseNotHPOs: N/A

CaseNotHPOFreeText: N/A

CasePreviousTesting: N/A

PreviouslyPublished: N/A

SupplementalData: N/A

Variant: p.P81S (c.241C>T)

LegacyVariant: P81S (c.454C>T)

CaseProblemVariantFreeText: N/A

ClinVar: 2233 https://www.ncbi.nlm.nih.gov/clinvar/variation/2233/

CAID: CA020148 http://reg.clinicalgenome.org/redmine/projects/registry/genboree_registry/allele?hgvsOrDescriptor=NM_000551.3%3Ac.241C%3ET

gnomAD: 0.0002179 https://gnomad.broadinstitute.org/variant/3-10183772-C-T

VariantEvidence: N/A

MutationType: missense_variant;transition

CivicName: P81S (c.241C>T) and L188V (c.562C>G)

MultipleGeneVariants: Germline, VHL, c.562C>G (p.Leu188Val)