[Mixed connective tissue disease (Sharp syndrome)].

In the Sharp syndrome we have to do with a mixed collagenosis with symptoms of sclerodermia, erythematodes visceralis, dermatomyositis and rheumatoid arthritis. Above all are observed a Raynaud syndrome, polyarthritis and polyarthralgias, swellings of hands and fingers and myositis and myalgia, respectively. For the ascertainment of the diagnosis as independent picture of a disease the immunological profile is decisive. On the basis of three casuistic cases the author adopts a definite attitude to the Sharp syndrome as independent immunopathy. Questions of diagnostics, therapy and prognosis are discussed.