Dermatomyositis: a clinical case and literature review
Orlova E.V., Plieva L.R., Pyatilova P.M., Novosartian M.G.

First Moscow State Medical University named after I.M. Sechenov

Dermatomyositis (DM) is a systemic progressive disease characterized by a predominant lesion of the striated and smooth musculature with impaired motor function and skin lesion. In 60% of the population with classical DM the lesions of the skin and muscles appear simultaneously, the form of DM which manifests itself only by the skin lesion is extremely rare. DM is common in all climatic and geographical zones of the earth and takes the third place after systemic scleroderma among systemic diseases of connective tissue. The disease can develop at any age, and it is more common in women. The incidence rate in the population is 1.8 cases per 100,000 patients per year. The immune and infectious theories are significant in the etiopathogenesis of the disease. This article describes the case of a rare form of amiopathic dermatomyositis, which is characterized by skin lesions, without a typical DM lesion of the muscles. According to various data, the duration of skin lesions without symptoms of myositis is 6 to 24 months and more. It is more common in the Asian population. The article considers the actual issues of etiology and pathogenesis, the modern international classification, the algorithm of diagnostic search and treatment of this disease.

Key words: autoimmune disease, dermatomyositis, amiopathic dermatomyositis, skin symptoms, heliotrope rash, Gottron sign, «shawl» symptom, «holster» symptom, «Mechanic hand», Tibierge-Weissenbach syndrome, muscle weakness, topical treatment.
For citation: Orlova E.V., Plieva L.R., Pyatilova P.M., Novosartian M.G. Dermatomyositis: a clinical case and literature review // RMJ.  2017. № 11. P. 850–852.