[Skin lesions and joint involvement in purpura fulminans (author's transl)].

Until recently, purpura fulminans had a very prognosis. It can now be treated and the patient may survive but extensive skin necrosis may lead to septic arthritis. The authors have observed 4 cases of this disease. 3 had to suffer amputation of a lower limb. They describe the type of care recommended in order to limit the extent of the necrosis.