[Calcific uremic arteriolopathy (calciphylaxis)]

We present the case of a end stage renal failure patient treated with haemodialysis who developed painful nodules of the subcutis which progressed to ulcerative and necrotic lesions, gradually spreading. The diagnosis of calcific uremic arteriolopathy was made, based on histologic findings showing adipose tissue with necrotic areas and calcifications of the arterioles's media. We describe the clinical presentation of this syndrome which is associated with a high mortality and resume the actual conceptions about the pathogenesis, the diagnosis, prevention and treatment.