[Scleredema adultorum : Clinical presentation, diagnostic workup, differential diagnosis, treatment option].

Scleredema adultorum (SA) is a rare scleromucinous disease of unknown etiology that characteristically leads to wodden induration located on the neck and upper trunk. Three types of SA can be distinguished according to the association with pre-existing or underlying disease: SA in association with infections (mostly streptococcal infections of the upper respiratory tract), SA in association with monoclonal gammopathy, and SA in association with diabetes. The clinical findings, extent of disease, and course substantially differ depending on the subtype of SA. Spontaneous regression often occurs in infection-associated SA, whereas patients with diabetes or monoclonal gammopathy usually show a chronic progressive course of disease. Phototherapy and methotrexate are the current recommended first-line treatments for SA, clinical improvement often takes several months, and treatment failure is frequent. Physiotherapy should be offered in all types of SA in order to improve motility.