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    1. A 34-year-old man with a history of VHL and NF1 was referred to dermatology for evaluation and management of multiple bleeding papules. The papules were tender, and the bleeding caused his pillowcases to be soaked in blood. He reported many similar papules previously in various anatomical locations. Removal of prior lesions was successful and did not cause satellitosis. New papules would appear gradually over years, and at the time of the visit, 6 papules were bothersome because of intermittent bleeding.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. VHL was subsequently confirmed by mutation analysis (P81S mutation). Central nervous system hemangioblastoma is the most common tumor in VHL and was present in the patient. He did not have any additional tumors or cysts in the central nervous system or visceral organs that are common in VHL, which include retinal hemangioblastomas, renal cell carcinoma and cysts, pheochromocytomas, and pancreatic tumors and cysts.5 The patient did not have family history of NF1 or VHL. Medications included dextroamphetamine for attention deficit disorder.On physical examination, 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 (Fig 1). These were painful with slight pressure. Several other similar, although smaller, papules were noted on the trunk. 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 (Fig 2). Axillary freckling was noted on both axilla and the groin. The patient returned to the dermatology clinic 4 months later with new growing and bleeding vascular papules in new locations; they were similar to those removed at the initial visit and consistent with lobular capillary hemangiomas.

      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