36 Matching Annotations
  1. Last 7 days
    1. 191253N—N—YYYYN—Exon 1—Large deletion

      PatientID: 19

      KindredID: 12

      Case: Sex Unknown, 53Y0M, Brazilian (Latino/Admixed American)

      DiseaseAssertion: VHL

      FamilyInfo: None

      CasePresentingHPOs: HP:0001737; HP:0010797; HP:0000107; HP:0005584 (pancreatic cyst, hemangioblastoma, renal cyst, renal cell carcinoma)

      CaseHPOFreeText: The patient at 53Y was confirmed with VHL. They developed renal cell carcinoma, renal and pancreatic cysts, and CNS HBs

      CaseNotHPOs: HP:0002668, HP:0002666; HP:0030405; HP:0009711 (paraganglioma, pheochromocytoma, pancreatic endocrine tumor, retinal capillary hemangioma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Large deletion of exon 1

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. 1 (100)

      GroupID: 5

      Case: Sex Unknown, Age Unknown, Ethnicity Unknown

      DiseaseAssertion: VHL

      CohortInfo: a retrospective cohort study from an eye centre in Germany involved 148 VHL patients and their genetic data involved in retinal capillary hemangiomas.

      CasePresentingHPOs: HP:0009711 (retinal capillary hemangioma)

      CaseHPOFreeText: This individual patient had retinal capillary hemangiomas. Other VHL manifestations were discussed but not per- variant.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Yes - Supplementary Table S1

      Variant: Exon 1 deletion

      LegacyVariant: N/A

      GroupProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 deletion

      MultipleGeneVariants: N/A

    1. PatientID: 347

      KindredID: 347

      Case: Sex Unknown, 30Y0M, Ethnicity Unknown

      DiseaseAssertion: VHL

      FamilyInfo: Family history is positive but no details provided.

      CasePresentingHPOs: HP:0010797; HP:0000107 (Hemangioblastoma, Renal cyst)

      CaseHPOFreeText: CNS hemangioblastoma and renal cyst.

      CaseNotHPOs: HP:0002666; HP:0006770; HP:0009711; HP:0001732 (Pheochromocytoma, Clear cell renal cell carcinoma, Retinal capillary hemangioma, Abnormality of the pancreas)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished:N/A

      SupplementalData: Table S1, S2 and S3

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant; deletion

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. 1Deletion

      PatientID: proband 17

      KindredID: 17

      Case: M, 21Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: the patients mother was found at 43Y with RCC and multiple pancreatic cysts or tumors, however she passed before any diagnosis of DNA sample was provided

      CasePresentingHPOs: HP:0009711; HP:0009715 (retinal capillary hemangioma, Papillary cystadenoma of the epididymis)

      CaseHPOFreeText: patient was found with retinal hemangioblastomas and epididymal/ovarian cystadenoma at 21Y

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: exon 1 deletion

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: exon 1 deletion

      MultipleGeneVariants: N/A

    1. PatientID: 239

      KindredID: 91

      Case: M, 25Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: The proband (patient 239) has a sister (patient 240) who presented with multiple pancreatic cysts/tumors at 28.

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

      CaseHPOFreeText: The proband presented with a retinal angioma at 14 and a CNS hemangioblastoma at 25.

      CaseNotHPOs: HP:0001737; HP:0001732; HP:0005584; HP:0002666 (Pancreatic cysts, Abnormality of the pancreas, Renal cell carcinoma, Pheochromocytoma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: This patient was also published in a later paper by Wang et al., 2018 (PMID: 29330336).

      SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    2. PatientID: 251

      KindredID: 96

      Case: F, 44Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: The proband (patient 250) presented with a CNS hemangioblastoma at 23, retinal angioma at 17, and multiple pancreatic cysts/tumors at 19. His mother (patient 251) presented with a CNS hemangioblastoma at age 43, retinal angioma at 35, renal cell carcinoma/multiple pancreatic cysts/tumors at 44.

      CasePresentingHPOs: HP:0010797; HP:0009711; HP:0001737; HP:0001732; HP:0005584 (Hemangioblastoma, Retinal capillary hemangioma, Pancreatic cysts, Abnormality of the pancreas, Renal cell carcinoma)

      CaseHPOFreeText: The patient's mother presented with a CNS hemangioblastoma at age 43, retinal angioma at 35, renal cell carcinoma/multiple pancreatic cysts/tumors at 44.

      CaseNotHPOs: HP:0002666 (Pheochromocytoma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: This cohort was also published in a later paper by Wang et al., 2018 (PMID: 29330336).

      SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    3. PatientID: 253

      KindredID: 98

      Case: F, 27Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: The proband, patient 253, presented with a CNS hemangioblastoma, renal cell carcinoma, and multiple pancreatic cysts/tumors at age 27. Their father (patient 254) was asymptomatic at the time of assessment. Their grandmother (patient 255) presented with renal cell carcinoma at 60 and multiple pancreatic cysts/tumors at 27, but passed away before diagnosis/ before the mutation could be confirmed.

      CasePresentingHPOs: HP:0010797; HP:0001737; HP:0001732; HP:0005584 (Hemangioblastoma, Pancreatic cysts, Abnormality of the pancreas, Renal cell carcinoma)

      CaseHPOFreeText: The patient presented with a CNS hemangioblastoma, renal cell carcinoma, and multiple pancreatic cysts/tumors at age 27.

      CaseNotHPOs: HP:0002666; HP:0009711 (Pheochromocytoma, Retinal capillary hemangioma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: This cohort was also published in a later paper by Wang et al., 2018 (PMID: 29330336).

      SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. (a) Southern blot analysis. Genomic DNA (7 μg) was subjected to an Eco RI and Ase I double digest and hybridized with the 32P labeled VHL cDNA probe g7. The upper band corresponds to the wild-type VHL gene, while the lower band represents a VHL pseudogene (Ψ), located on chromosome 1 20. Typically, samples with a rearrangement in the VHL gene exhibit a less intense wild-type VHL band and an abnormal migrating band Lanes 2 and 9 both represent members from family 35. Patient 12 (N) is a carrier of a VHL missense mutation and can be regarded as a normal control in this analysis. (b) Multiplex ligation-dependent probe amplification (MLPA). Peak signals on the electropherogram correspond to eight different probes recognizing exon 1 (four probes), exon 2 (two probes) and exon 3 (two probes) of the VHL gene, while all other peaks represent 21 control probes for other chromosomal loci, including the FANCD2 (3 probes) and IRAK2 (one probe) genes which, similar to VHL, are located on chromosome 3p. In MLPA, a 40–50% reduction of probe signal intensity typically indicates heterozygous deletion of the corresponding genomic sequence. Deleted VHL exons are indicated by a ‘Δ’ sign followed by the number of the exon involved. Probands 36 and 35 each show a partial VHL gene deletion. Note that in proband 42 the deletion encompasses not only the entire VHL gene, but also the FANCD2 and IRAK2 loci (indicated by ‘Δc’). Proband U168 carrying a deletion of VHL exon 2 was used as a control to validate the MLPA and is not described further in this paper. In all of our patients tested, MLPA results corresponded perfectly with data from Southern blotting, with respect to the VHL exons deleted.
  2. Nov 2026
    1. We identified deletions ranging from 0.5 kb to 250 kb affecting part of or the entire VHL and flanking genes in 54 families

      GroupID: 4

      DiseaseAssertion: VHL

      GroupSize: N/A GroupNumberMales: N/A GroupNumberFemales: N/A GroupEthnicity: N/A GroupAgeRange: N/A

      GroupInfo: 54 VHL deletion families from the Freiburg registry were selected in order to assist in the correlation of VHL deletions to clinical phenotypes.

      GroupPresentingHPOs: HP:0005584; HP:0002666; HP:0009711; HP:0001737 (Renal cell carcinoma, Pheochromocytoma, Retinal capillary hemangioma, Pancreatic cysts)

      GroupHPOFreeText: # of affected individuals: Renal cell carcinoma (1), Pheochromocytoma (1), Retinal capillary hemangioma (1), Pancreatic cysts (1)

      GroupNotHPOs: N/A

      GroupNotHPOFreeText: N/A

      GroupPreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Supplemental Table 2, Table 1, Table 3

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. PatientID: None

      KindredID: 36

      Case: M, 31Y0M, Spanish

      DiseaseAssertion: VHL

      FamilyInfo: Positive for familial antecedents. No known familial tumors.

      CohortInfo: Probands belonging to 18 unrelated Spanish VHL families carrying germline VHL deletions.

      CasePresentingHPOs: HP:0006880; HP:0001737 (Cerebellar hemangioblastoma, Pancreatic cysts)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: Germline HSPC300, ENST197804 and FANCD2 (unclear if partial or complete) gene deletions. Study provides evidence to show that loss of HSPC300 highly correlates with the absence of ccRCC in VHL patients.

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: Germline, HSPC300, Deletion MultipleGeneVariants: Germline, ENST197804, Deletion MultipleGeneVariants: Germline, FANCD2, Deletion

    2. PatientID: None (Proband)

      KindredID: 53

      Case: F, 18Y0M, Spanish

      DiseaseAssertion: VHL

      FamilyInfo: Positive for familial antecedents. Family history of clear cell renal cell carcinoma.

      CohortInfo: Probands belonging to 18 unrelated Spanish VHL families carrying germline VHL deletions.

      CasePresentingHPOs: HP:0006880; HP:0001737; HP:0009711 (Cerebellar hemangioblastoma, Pancreatic cysts, Retinal capillary hemangioma)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: Germline HSPC300 (Figure 2 appears to indicate an exon 2-3 deletion of this gene since it spans the same left-most distance as the mutation in patient 108 which is stated to be an exon 2-3 deletion) and ENST197804 deletion. Study provides evidence to show that loss of HSPC300 highly correlates with the absence of ccRCC in VHL patients.

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: Germline, HSPC300, Exon 2-3 Deletion MultipleGeneVariants: Germline, ENST197804, Deletion

    1. 37 c.1-?_340+? Genomic deletion of exon 1 Familial VHL

      GroupID/ KindredID: 37

      DiseaseAssertion: VHL

      GroupSize: 8

      GroupNumberMales: N/A

      GroupNumberFemales: N/A

      GroupEthnicity: N/A

      GroupAgeRange: N/A

      GroupInfo: 8 registrants belonging to the same family (37) have the germline VHL deletion.

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

      GroupHPOFreeText: all 8 members had hemangioblastomas, 7 had retinal capillary hemangiomas. 7 had renal cell carcinoma, 1 had pancreatic cysts, and 1 had hepatic carcinoma

      GroupNotHPOs: HP:0002666; HP:0000107 (pheochromocytoma, renal cyst)

      GroupNotHPOFreeText: N/A

      GroupPreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Exon 1 deletion (c.1-?_340+?)

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 deletion

      MultipleGeneVariants: N/A

    1. 1 Netherlands delEx1

      GroupID: 36

      Case: Sex unknown, Age unknown, Dutch (The Netherlands)

      DiseaseAssertion: VHL

      FamilyInfo: Unknown. 1 registrant was found with this variant; no family info was mentioned

      CasePresentingHPOs: HP:0030393 (Endolymphatic sac tumor)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Exon 1 deletion

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

  3. Oct 2026
    1. PatientID: 29

      KindredID: 19

      Case: F, 37Y0M, Indian

      DiseaseAssertion: VHL

      FamilyInfo: Relevant family history but details are not made available.

      CohortInfo: This retrospective study was conducted at Department of Endocrinology of a tertiary care health centre in Western India. Patients presented to our institute between 2008 and 2016 were included in the study. During the study period a total of 33 patients were suspected to have VHL syndrome based on clinical features among whom 31 patients were found to have mutation in VHL gene. All patients are of Asian Indian descent.

      CasePresentingHPOs: HP:0002666; HP:0009711; HP:0001737; HP:0030405 (Pheochromocytoma, Renal cell carcinoma, Pancreatic cysts, Pancreatic endocrine tumor)

      CaseHPOFreeText: Unilateral pheochromocytoma. Metastasis found at age 37. Cause of death: metastatic PNET.

      CaseNotHPOs: HP:0010797; HP:0002668; HP:0005584 (Hemangioblastoma, Paraganglioma, Retinal capillary hemangioma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. PatientID: None

      KindredID: 330

      Case: Age unknown, Sex unknown, Ethnicity unknown

      DiseaseAssertion: VHL

      FamilyInfo: Paper states familial VHL

      CasePresentingHPOs: HP:0010797 (hemangioblastoma)

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Yes (Specifically Supp. Table S2)

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. PatientID: 252

      KindredID: 97

      Case: M, 46Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: N/A

      CasePresentingHPOs: HP:0010797; HP:0009711; HP:0001737; HP:0001732; HP:0005584 (Hemangioblastoma, Retinal capillary hemangioma, Pancreatic cysts, Abnormality of the pancreas, Renal cell carcinoma)

      CaseHPOFreeText: The patient presented with a CNS hemangioblastoma, retinal angioma, renal cell carcinoma, and multiple pancreatic cysts/tumors at age 46.

      CaseNotHPOs: HP:0002666 (Pheochromocytoma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: This cohort was also published in a later paper by Wang et al., 2018 (PMID: 29330336).

      SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    2. PatientID: 249

      KindredID: 95

      Case: F, Age Unknown, Chinese

      DiseaseAssertion: Asymptomatic

      FamilyInfo: The proband (patient 244) has a daughter with the variant (patient 245) who was asymptomatic at the time of assessment.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: The proband's nephew (son of sister) was asymptomatic at the time of assessment

      CaseNotHPOs: HP:0001737; HP:0001732; HP:0005584; HP:0009711; HP:0002666; HP:0010797 (Pancreatic cysts, Abnormality of the pancreas, Renal cell carcinoma, Retinal capillary hemangioma, Pheochromocytoma, Hemangioblastoma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: This cohort was also published in an earlier paper by Wang et al., 2014 (PMID 24581539) as well as a later paper by Wang et al., 2018 (PMID: 29330336).

      SupplementalData: Patient and family genotype-phenotype information is listed in Supplementary Table 1.

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. Family 16+Exon 1 DeletionNo118–3131––

      PatientID: None

      KindredID: 16

      Case: Sex Unknown, 31Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: The patient's father had a hemangioblastoma of the central nervous system at age 45. He was deceased before diagnosis could occur. The patient's sister, daughter, and nephew were all confirmed to have the same genetic mutation but were asymptomatic.

      CasePresentingHPOs: HP:0010797, HP:0005584, HP:0001732 (hemangioblastoma, renal cell carcinoma, abnormality of the pancreas)

      CaseHPOFreeText: The patient presented with hemangioblastoma at age 18. Later at age 31, he/she presented with renal cell carcinoma and pancreatic cysts or tumours.

      CaseNotHPOs: HP:0009711, HP:0002666, HP:0009715 (retinal capillary hemangioma, pheochromocytoma)

      CaseNotHPOFreeText: The patient did not have epididymal or ovarian cystadenoma.

      CasePreviousTesting: N/A

      PreviouslyPublished:29330336

      Variant: Exon 1 deletion

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVar: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    2. SisExon 1 DeletionAsy––––––

      PatientID: None

      KindredID: 16

      Case: F, Age Unknown, Chinese

      DiseaseAssertion:Asymptomatic

      FamilyInfo: Positive. The patient's sibling was the proband and presented with hemangioblastoma, renal cell carcinoma, and abnormality of the pancreas. Her niece also had the mutation but was asymptomatic. Another member of her family also had this mutation and was asymptomatic.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: HP:0010797, HP:0009711, HP:0002666, HP:0005584, HP:0001732 (hemangioblastoma, retinal capillary hemangioma, pheochromocytoma, renal cell carcinoma, abnormality of the pancreas)

      CaseNotHPOFreeText: The patient did not present with epididymal or ovarian cystadenomas.

      CasePreviousTesting: N/A

      PreviouslyPublished:29330336

      Variant: Exon 1 deletion

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVar: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    3. NephewExon 1 DeletionAsy––––––

      PatientID: None

      KindredID: 16

      Case: M, Age Unknown, Chinese

      DiseaseAssertion:Asymptomatic

      FamilyInfo: Positive. The patient's uncle was the proband and presented with hemangioblastoma, renal cell carcinoma, and abnormality of the pancreas. The patient's mother and cousin also had the mutation but were asymptomatic.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: HP:0010797, HP:0009711, HP:0002666, HP:0005584, HP:0001732 (hemangioblastoma, retinal capillary hemangioma, pheochromocytoma, renal cell carcinoma, abnormality of the pancreas)

      CaseNotHPOFreeText: The patient did not present with epididymal or ovarian cystadenomas.

      CasePreviousTesting: N/A

      PreviouslyPublished:29330336

      Variant: Exon 1 deletion

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVar: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. 638FExon 1del exon 11 juxtapapillary--- Withdrawn b -

      PatientID: 6

      KindredID: 6

      Case: F, 38Y0M, Spanish

      DiseaseAssertion: VHL

      FamilyInfo: N/A

      CohortInfo: 7 VHL patients, from different regions of Spain, affected from juxtapapillary or peripheral haemangioblastomas were administered 120 mg propranolol daily.

      CasePresentingHPOs: HP:0009711 (Retinal capillary hemangioma)

      CaseHPOFreeText: The patient presented with a juxtapapillary tumor in her left eye at the age of 38.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Information obtained from Table 2.

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. 1Deletion

      PatientID: II:3

      KindredID: 2

      Case: F, 16Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: the patients father was found with the same exon deletion and hemangioblastomas at 28Y, retinal angiomas and RCC at 41Y, and multiple pancreatic cysts or tumors as well as pheochromocytomas at 42Y. Her two other siblings were not observed or tested.

      CasePresentingHPOs: HP:0010797 (hemangioblastoma)

      CaseHPOFreeText: patient was found with hemangioblastomas at 16Y

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: exon 1 deletion

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: exon 1 deletion

      MultipleGeneVariants: N/A

    2. 1Deletion

      PatientID: II:2

      KindredID: 8

      Case: F, 43Y0M, Chinese

      DiseaseAssertion: VHL

      FamilyInfo: a 3 generational family found with 5 phenotypically affected members, two of which were confirmed with the exon 1 deletion. This patient and her son were tested to be found with the deletion of exon 1. Her son was found with retinal angiomas at 17Y, pancreatic cysts and epididymal/ovarian cystadenoma at 19Y, and hemangioblastomas at 23Y. Her two sisters and father all had hemangioblastomas; and father also had RCC, however the father and one sister were deceased; and the other sister was not available to provide a DNA sample.

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

      CaseHPOFreeText: patient was found with retinal hemangioblastomas at 35Y and hemangioblastomas at 43Y

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: exon 1 deletion

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: exon 1 deletion

      MultipleGeneVariants: N/A

    1. PatientID: None

      KindredID: 3

      Case: F, 20Y0M, Ethnicity unknown

      DiseaseAssertion: assumed VHL

      FamilyInfo: Familial/syndromic (FS) association

      CasePresentingHPOs: HP:0002666; HP:0030393; HP:0030405; HP:0001737; HP:0000107 (Pheochromocytoma; endolymphatic sac tumor; pancreatic endocrine tumor; pancreatic cysts; renal cyst)

      CaseHPOFreeText: Benign unilateral pheochromocytoma at age 20Y0M; as well as ELST, PNETs, pancreatic and renal cysts

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: SDHB,SDHC, SDHD, and exons 10, 11, 13, 14, 15 and 16 of RET proto-oncogene

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Deletion of exon 1

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: Heterozygous deletion of exon 1

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. We identified deletions ranging from 0.5 kb to 250 kb affecting part of or the entire VHL and flanking genes in 54 families

      GroupID: 8

      DiseaseAssertion: VHL

      GroupSize: N/A GroupNumberMales: N/A GroupNumberFemales: N/A GroupEthnicity: N/A GroupAgeRange: N/A

      GroupInfo: 54 VHL deletion families from the Freiburg registry were selected in order to assist in the correlation of VHL deletions to clinical phenotypes.

      GroupPresentingHPOs: HP:0000107; HP:0009711; HP:0010797; HP:0009713; HP:0001737 (Renal cyst, Retinal capillary hemangioma, Hemangioblastoma, Spinal hemangioblastoma, Pancreatic cysts)

      GroupHPOFreeText: # of affected individuals: Renal cyst (1), Retinal capillary hemangioma (1), Hemangioblastoma/brain/cerebellum (1), Spinal hemangioblastoma (1), Pancreatic cysts (1)

      GroupNotHPOs: N/A

      GroupNotHPOFreeText: N/A

      GroupPreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Supplemental Table 2, Table 1, Table 3

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    2. We identified deletions ranging from 0.5 kb to 250 kb affecting part of or the entire VHL and flanking genes in 54 families

      GroupID: 3

      DiseaseAssertion: VHL

      GroupSize: N/A GroupNumberMales: N/A GroupNumberFemales: N/A GroupEthnicity: N/A GroupAgeRange: N/A

      GroupInfo: 54 VHL deletion families from the Freiburg registry were selected in order to assist in the correlation of VHL deletions to clinical phenotypes.

      GroupPresentingHPOs: HP:0005584; HP:0000107; HP:0009711; HP:0010797; HP:0001737; HP:0030405 (Renal cell carcinoma, Renal cyst, Retinal capillary hemangioma, Hemangioblastoma, Pancreatic cysts, Pancreatic neuroendocrine tumor)

      GroupHPOFreeText: # of affected individuals: Renal cell carcinoma (1), Renal cyst, Retinal capillary hemangioma (2), Hemangioblastoma/cerebellum/brain (2), Pancreatic cysts (2), Pancreatic neuroendocrine tumor (1).

      GroupNotHPOs: N/A

      GroupNotHPOFreeText: N/A

      GroupPreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Supplemental Table 2, Table 1, Table 3

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    3. We identified deletions ranging from 0.5 kb to 250 kb affecting part of or the entire VHL and flanking genes in 54 families

      GroupID: 2

      DiseaseAssertion: VHL

      GroupSize: N/A GroupNumberMales: N/A GroupNumberFemales: N/A GroupEthnicity: N/A GroupAgeRange: N/A

      GroupInfo: 54 VHL deletion families from the Freiburg registry were selected in order to assist in the correlation of VHL deletions to clinical phenotypes.

      GroupPresentingHPOs: HP:0009711; HP:0009713; HP:0030393; HP:0030424 (Retinal capillary hemangioma, Spinal hemangioblastoma, Endolymphatic sac tumor, Epididymal cyst)

      GroupHPOFreeText: # of affected individuals: Retinal capillary hemangioma (1), Spinal hemangioblastoma (1), Endolymphatic sac tumor (1), Epididymal cyst (1)

      GroupNotHPOs: N/A

      GroupNotHPOFreeText: N/A

      GroupPreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Supplemental Table 2, Table 1, Table 3

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: Germline, ENST197804, partial deletion

    4. We identified deletions ranging from 0.5 kb to 250 kb affecting part of or the entire VHL and flanking genes in 54 families.

      GroupID: 7

      DiseaseAssertion: VHL

      GroupSize: N/A GroupNumberMales: N/A GroupNumberFemales: N/A GroupEthnicity: N/A GroupAgeRange: N/A

      GroupInfo: 54 VHL deletion families from the Freiburg registry were selected in order to assist in the correlation of VHL deletions to clinical phenotypes.

      GroupPresentingHPOs: HP:0005584; HP:0000107; HP:0002666; HP:0009711; HP:0010797; HP:0009713; HP:0001737 (Renal cell carcinoma, Renal cyst, Pheochromocytoma, Retinal capillary hemangioma, Hemangioblastoma, Spinal hemangioblastoma, Pancreatic cysts)

      GroupHPOFreeText: # of affected individuals: Renal cell carcinoma (1), Renal cyst (1), Pheochromocytoma (1), Retinal capillary hemangioma (1), Hemangioblastoma/brain/cerebellum (1), Spinal hemangioblastoma (1), Pancreatic cysts (1)

      GroupNotHPOs: N/A

      GroupNotHPOFreeText: N/A

      GroupPreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Supplemental Table 2, Table 1, Table 3

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. In four families, partial deletions of one or more exons were detected by Southern blot analysis

      GroupID/ KindredID: Family D

      DiseaseAssertion: VHL (clinically diagnosed in, at minimum, the proband)

      GroupSize: 2

      GroupNumberMales: N/A

      GroupNumberFemales: N/A

      GroupEthnicity: Belgian

      GroupAgeRange: 46-? (mean 46Y)

      GroupInfo: 2 family members are grouped with this deletion

      GroupPresentingHPOs: HP:0010797; HP:0009711; HP:0001737 (hemangioblastoma, retinal capillary hemangioma, pancreatic cysts)

      GroupHPOFreeText: both (2) patients were found with hemangioblastoma, 1 with retinal capillary hemangioma, and 1 with pancreatic cysts. Unclear specific patient-phenotype grouping

      GroupNotHPOs: HP:0005584; HP:0002666 (renal cell carcinoma, pheochromocytoma)

      GroupNotHPOFreeText: No patients were found to have pheochromocytoma or RCC

      GroupPreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Deletion of exon 1

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: Southern blot analysis with EcoRI and hybridization with the g7 probe generated an aberrant restriction fragment (Fig. 3). This aberrant restriction fragment was recognized by probes representing exons 2 and 3. However, hybridization with the exon 1 probe resulted in a normal banding pattern, indicating a deletion encompassing exon 1.

      MutationType: exon_loss_variant

      CivicName: exon 1 deletion

      MultipleGeneVariants: N/A

    1. 1HbCb age 18, Hbs age 19,Hbs age 31Renal cysts 

      PatientID: 1

      KindredID: 1

      Case: M, 31Y0M, Ethnicity Unknown

      DiseaseAssertion: VHL

      FamilyInfo: Mother with the same variant and presented with breast cancer at age 46 and cerebellar hemangioblastoma and renal cell carcinoma both at age 54. Maternal grandfather (id: 3) presented with cerebellar hemangioblastoma at age 65. Maternal great-uncle (id: 4) presented with prostate cancer at age 65. Maternal great-grandfather (id: 5) presented with cerebellar hemangioblastomas at age 69. Maternal grandmother and sister did not have the mutation. His maternal grandfather was not tested. No family history of retinal capillary hemangiomas or pheochromocytoma.

      CasePresentingHPOs: HP:0006880; HP:0009713; HP:0005562 (Cerebellar hemangioblastoma, Spinal hemangioblastoma, Multiple renal cysts)

      CaseHPOFreeText: N/A

      CaseNotHPOs: HP:0002666; HP:0009711 (Pheochromocytoma, Retinal capillary hemangioma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Figure 1 (pedigree) and Table 1 (phenotype and age of onset data).

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: Germline, FANCD2, Partial Deletion

    2. Interestingly, one carrier of the deletion developed bilateral breast cancer at age 46 and 49. First cancer was diagnosed at the age of 46 in her right breast. The patient was treated by mastectomy with postoperative chemotherapy (CMF). Histopathological examination revealed invasive ductal breast carcinoma of 1.8 cm size. The tumor was ER- negative, and PR-negative (HER2 was not analyzed). A metastasis in 1 axillary lymph node was found. There was no evidence of distant metastases. The tumor was classified as T1c pN1a M0, stage IIA; grade G2. Three years later, at the age of 49, she was diagnosed with cancer of her left breast. It was an invasive ductal carcinoma of 2.0 cm size. The tumor was ER-positive, PR-positive, and HER2-negative. There was no evidence for lymph-node or distant metastases. The tumor was classified as T1c pN 0 M0, stage IA, grade G2 and treated with mastectomy and tamoxifen. Ki67 expression was not tested. At present, 9 and 6 years after treatment of the breast cancers there is no evidence of breast cancer recurrence. However at age of 54, lesions typical for VHL disease including cerebellar haemangioblastoma and renal cell carcinoma were diagnosed in the patient.

      PatientID: 2

      KindredID: 1

      Case: F, 54Y0M, Ethnicity Unknown

      DiseaseAssertion: VHL

      FamilyInfo: Son (id:1) with the same variant, presenting with cerebellar hemangioblastoma at age 18, spinal hemangioblastomas at ages 19 and 31 and renal cysts but the age of onset for these is not noted. Father (id: 3) presented with cerebellar hemangioblastoma at age 65. Paternal uncle (id: 4) presented with prostate cancer at age 65. Paternal grandfather (id: 5) presented with cerebellar hemangioblastomas at age 69. Mother and daughter did not have the mutation. Her father was not tested. No family history of retinal capillary hemangiomas or pheochromocytoma.

      CasePresentingHPOs: HP:0006880; HP:0005584; HP:0003002 (Cerebellar hemangioblastoma, Renal cell carcinoma, Breast carcinoma)

      CaseHPOFreeText: Bilateral breast cancer at age 46 and 49. First cancer was diagnosed at the age of 46 in her right breast. The patient was treated by mastectomy with postoperative chemotherapy (CMF). Histopathological examination revealed invasive ductal breast carcinoma. A metastasis in 1 axillary lymph node was found. There was no evidence of distant metastases. Three years later, at the age of 49, she was diagnosed with cancer of her left breast. It was an invasive ductal carcinoma. There was no evidence for lymph-node or distant metastases. At present, 9 and 6 years after treatment of the breast cancers there is no evidence of breast cancer recurrence. However at age of 54, lesions typical for VHL disease including cerebellar haemangioblastoma and renal cell carcinoma were diagnosed in the patient.

      CaseNotHPOs: HP:0002666; HP:0009711 (Pheochromocytoma, Retinal capillary hemangioma)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Figure 1 (pedigree) and Table 1 (phenotype and age of onset data).

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: Germline, FANCD2, Partial Deletion

    1. deletion of exon 1

      A 39 year old man was confirmed to have a germline exon 1 deletion of the VHL gene at age 26. Details regarding genotyping methods are not specified. He presented with epistaxis at age 34 and CT scans showed an ethmoid mass later identified as a primary microcystic adenoma. He underwent endoscopic transsphenoidal resection of the legion and he was negative for metastatic disease. Analysis of tumour DNA showed it to be heterozygous for an intron 1 polymorphism (c.341-50G>A). He had a history of cerebellar haemangioblastoma and ccRCC.

    1. We studied six patients with VHL disease and their relatives. Loss of heterozygosity (LOH) was determined by five flanking microsatellite polymorphic markers in the VHL locus

      PatientID: 4

      KindredID: F02

      Case: F, Age Unknown, Taiwanese

      DiseaseAssertion: Asymptomatic

      FamilyInfo: A total of 2 members of this family (F02) had a complete deletion of the VHL gene. One of these patients (3) presented with clinical features of VHL.

      CasePresentingHPOs: N/A

      CaseHPOFreeText: N/A

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: Figure 1

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: Deletion of 53.3kb resulted in deletion of Exon 1 in the VHL gene.

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: Germline, FANCD2, deletion

    1. III 10 26 6 PC (15 years) 1 retinal hb (16 years) T c.1-?_340 + ?del

      PatientID: III

      KindredID: 17

      Case: Sex Unknown, 26Y0M, Danish

      DiseaseAssertion: VHL

      FamilyInfo: 2 other family members were found to have this VHL variant. Patient 17-I was asymptomatic. Patient 17-II presented with CNS hemangioblastoma (8Y).

      CasePresentingHPOs: HP:0009711; HP:0001737 (Retinal capillary hemangioma, Pancreatic cysts)

      CaseHPOFreeText: Diagnosed with VHL at age 10Y. Presented with 6 pancreatic cysts (15Y) and retinal hemangioblastoma (16Y). Age at the end of study: 26Y.

      CaseNotHPOs: N/A

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Exon 1 Deletion (c.1-?_340+?del)

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

    1. Exon 1deletion

      GroupID/ KindredID: 19 / S 1

      DiseaseAssertion: VHL

      GroupSize: 2

      GroupNumberMales: N/A

      GroupNumberFemales: N/A

      GroupEthnicity: Polish

      GroupAgeRange: N/A

      GroupInfo: Familial VHL stated; 2 family members recorded with this deletion.

      GroupPresentingHPOs: HP:0010797; HP:0009711; HP:0005584 (hemangioblastoma; retinal capillary hemangioma; renal cell carcinoma)

      GroupHPOFreeText: Both (2) patients had RCC, 1 had hemangioblastomas and 1 had retinal capillary hemangioma. These phenotypes couldn’t be paired as it was not clear.

      GroupNotHPOs: N/A

      GroupNotHPOFreeText: N/A

      GroupPreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Exon 1 deletion

      CaseProblemVariantFreeText: N/A

      LegacyVariant: N/A

      ClinVarID: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence: N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A

  4. Jul 2026
    1. 4 partial deletions

      GroupID/ KindredID: 22

      Case: Age unknown, Sex unknown, Chinese

      DiseaseAssertion: hemangioblastoma

      FamilyInfo: No family history. Genetic testing of their parents confirmed a de novo mutation.

      CasePresentingHPOs: HP:0010797 (hemangioblastoma)

      CaseHPOFreeText: N/A

      CaseNotHPOs: HP:0002666; HP:0005584; HP:0009711; HP:0001732 (pheochromocytoma; renal cell carcinoma; retinal capillary hemangioma; pancreatic lesion)

      CaseNotHPOFreeText: N/A

      CasePreviousTesting: N/A

      PreviouslyPublished: N/A

      SupplementalData: N/A

      Variant: Exon 1 deletion

      LegacyVariant: N/A

      CaseProblemVariantFreeText: N/A

      ClinVar: N/A

      CAID: N/A

      gnomAD: N/A

      VariantEvidence:N/A

      MutationType: exon_loss_variant

      CivicName: Exon 1 Deletion

      MultipleGeneVariants: N/A