[Kaposiform angiodermatitis (Bluefarb-Stewart syndrome) caused by a superficial arteriovenous malformation of the trochanter area: a case report].

We reported a case of kaposiform angiodermatitis (Bluefarb-Stewart syndrome) complicating a superficial arterio-venous malformation of the skin and the sub-cutaneous tissue of the right trochanter area of a 28 year-old-man. This lesion resulted from large arterio-venous shunts occurring over a one-year period inside the vascular malformation, which remained stable for 27 years. This case report underlines that any vascular malformation may take an uncertain turn and needs an attentive follow-up with adequate treatment.