[Acenocoumarol and vasculitis - a rare case]

The authors present a case of a man with 62 years of age who comes to the emergency room by purple skin lesions affecting the whole body, including palmar-plantar involvement, with insidious installation, with three weeks of development. Physical examination revealed multiple purple-shaping round and confluent lesions involving the entire body. Laboratory tests performed were all normal. During the admission a skin biopsy was performed. After exclusion of other causes for the purpuric lesions, the acenocoumarol was interrupted and the lesions disappeared, spontaneously, in a week. The purple was attributed to the administration of acenocoumarol, given the resolution of lesions, despite the chronicity of therapy. This case illustrates a rare association between vasculitis and acenocoumarol.