title: The development of excess numbers of melanocytic naevi in an immunosuppressed identical twin.
abstract: The development of cutaneous proliferative lesions following renal transplantation has been well documented in the literature. Those lesions most commonly seen include viral warts, actinic keratoses and basal-cell and squamous-cell carcinomata. More recently it has been suggested that melanocyte proliferation, both benign and malignant, may follow renal transplantation, probably as a result of immunosuppression. We report the case of an identical twin who developed numerous benign melanocytic naevi following renal transplantation; no such proliferation of naevi occurred in his identical sibling.
authors.affiliation: Department of Dermatology, United Medical School (Guy's Campus), London, UK.
authors.forename: J M
authors.initials: JM
authors.lastname: McGregor
authors.forename: J N
authors.initials: JN
authors.lastname: Barker
authors.forename: D M
authors.initials: DM
authors.lastname: MacDonald
mesh_terms: D002648:Child; D004200:Diseases in Twins / Q000209:etiology*; D006801:Humans; D007165:Immunosuppression Therapy / Q000009:adverse effects*; D016030:Kidney Transplantation; D008297:Male; D009508:Nevus, Pigmented / Q000209:etiology* / Q000473:pathology; D012878:Skin Neoplasms / Q000209:etiology* / Q000473:pathology; D014430:Twins, Monozygotic