[Sclerosing skin diseases].

Sclerosing skin manifestations are more a symptom than a diagnosis and must therefore be meticulously clarified. Systemic scleroderma as a multiorgan disease must be distinguished from localized scleroderma or morphea because in addition to a different clinical picture they have a different prognosis and necessitate other therapeutic procedures. Rare sclerosing skin diseases with implications for internal medicine are eosinophilic fasciitis, Buschke's scleredema adultorum, scleromyxedema and nephrogenic systemic fibrosis.