[Systemic vasculitis combined with connective tissue involvement in a patient with yersiniosis].

A clinico-morphological description is presented of a severe systemic disease in 36-year-old male, the trigger factor of which was Yersinia enterocolitica. The patient developed a peculiar nosological variant of systemic necrotic vasculitis of infectious-allergic genesis with signs of nodular periarteritis in the intestine and kidneys in association with diffuse involvement of the connective tissue which resulted 6 months later in a dominating abdominal syndrome with profuse diarrhea, progressive cachexia with a fatal outcome. The diagnosis was established after death.