Epidermal cysts and folliculitis caused by cyclosporin A

摘要: A 66-year-old man was treated with cyclosporin (Sandimmun) after a kidney transplant and developed numerous epidermal cysts, comedones folliculitis in the 2nd year of immunosuppressive therapy. The eruptions were more marked on back temporal retroauricular regions face. Histological examination cystic tumour revealed follicular cyst acro-infundibular type. While hypertrichosis gingival hyperplasia are now well known as side effects A, acneiform skin lesions must also be attributed to this drug.