皮肌炎患者恶性肿瘤的发病率比一般人高5～7倍。我们遇到1例,现报告如下。患者女性,46岁,1977年夏因双眼睑肿胀,全身散在丘疹及肌无力、结合皮肤活检诊为皮肌炎,经口服强的松30—40mg/日治疗,皮肌炎症状稳定。1980年6月患者感肌无力症状加重,右颈发现一核桃大样肿物,9月住院治疗。查尿肌酸、尿肌酐均高于正常值,未查到狼疮细胞,鼻咽腔活检证实为 The incidence of malignant tumors in patients with dermatomyositis is 5 to 7 times higher than the average person. We encountered one case and the report is as follows. Female patients, 46 years old, in the summer of 1977 due to bilateral eyelid swelling, systemic scattered papules and muscle weakness, combined with skin biopsy diagnosed as dermatomyositis, by oral prednisone 30-40mg / day treatment, dermatomyositis symptoms stable. In June 1980, the symptoms of musculoskeletal weakness increased, and a large walnut mass was found in the right neck and was hospitalized in September. Urinary creatine, creatinine were higher than normal, no lupus cells were found, and biopsy of the nasopharynx was confirmed as