[Acute ischemic ulcer].

Acute ischemic ulcers are real superficial skin infarcts due to capillary thrombosis. The remainder of the limb has a satisfactory blood supply and healing may be obtained, whatever the eetent of the ulcers, by methods aimed at correcting the general disorders in question and by local treatments in preparation for skin grafts. The prognosis of these ulcers is not as bad as that of chronic arteritis ulcers, which are caused by an important hypovascularization of the limb.