Clinical data of 34 patients with DM, who have been treated during the years 1971 and 1998 were evaluated. 79% of the patients (27 patients) were female, 21% of them (7 patients) were male. 59% of the patients (20 pts) were between the ages of 41 and 50 years. The characteristic heliotrop rash were observed in 26 patients, Gottron's papules in 20 patients, poikiloderma in 2 patients, calcification, ulcers, Raynaud syndrome in 1 patient. 3 of the 34 patients presented with strongly itching erythematopapulosus symptoms, most prominently on the scalp. Cardiac involvement were present in 10 patients (29%), lung involvement in 8 patients (23%), gastrointestinal complaints in 11 patients, dysphagia, dysphonia in 4 patients, joint pain in 5 patients. Overlap syndrome--scleroderma-dermatomyositis, SLE-dermatomyositis--was present in 2 patients. 9 of the 34 patients (26%) suffered from malignant tumours: gastric, breast, lung, epipharynx carcinoma, malignant melanoma. 13 of the 34 patients have been treated with corticosteroids together with immunosuppressor agents, in most cases azathioprin was administered. Cyclosporin was given in 7 cases, chloroquine in 2 cases.