Abstract
Dermatomyositis is an idiopathic inflammatory myopathy with characteristic cutaneous lesions and progressive symmetric proximal muscle weakness. An association between dermatomyositis and malignancy has long been reported on. A 73 year-old male patient with had biopsy-proven prostate cancer presented with typical skin lesions and proximal muscle weakness. On the laboratory findings, the muscle enzymes were prominently elevated. EMG and muscle biopsy showed typical findings that were consistent with dermatomyositis. The patient was successfully treated with systemic steroid, intravenous immunoglobulin and methotrexate. In Korea, dermatomyositis is frequently complicated by stomach, lung and breast cancers. To the best of our knowledge, this is the first Korean report of dermatomyositis accompanied by prostate cancer. Here, we describe the case of dermatomyositis with prostate cancer and we briefly review the relevant literatures.
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