Huang P.-Y.CHIA-YU CHUHsiao C.-H.2019-12-042019-12-0420070190-9622https://www.scopus.com/inward/record.uri?eid=2-s2.0-35148848260&doi=10.1016%2fj.jaad.2006.05.070&partnerID=40&md5=7473859ecf494c8584190cf5f62115f0https://scholars.lib.ntu.edu.tw/handle/123456789/434967Dermatofibroma (DF) is a common, benign, dermal tumor, often occurring as a single lesion. Multiple eruptive DFs are rare and usually associated with autoimmune diseases, immunosuppressant therapy, or both. We present the case of a 28-year-old woman with dermatomyositis who developed multiple eruptive DFs after undergoing methotrexate and corticosteroid treatment. Immunosuppressants such as methotrexate and corticosteroids might cause multiple eruptive DFs. ? 2007 American Academy of Dermatology, Inc.[SDGs]SDG3azathioprine; corticosteroid; hydroxychloroquine; methotrexate; prednisolone; adult; anamnesis; article; case report; clinical feature; dermatofibroma; dermatomyositis; electromyography; female; human; human tissue; laboratory test; muscle biopsy; physical examination; priority journal; Adult; Dermatomyositis; Extremities; Female; Glucocorticoids; Histiocytoma, Benign Fibrous; Humans; Immunosuppressive Agents; Methotrexate; Prednisolone; Skin Neoplasmsjournal article10.1016/j.jaad.2006.05.070170973722-s2.0-35148848260