[Spontaneous and isolated dissection of the external iliac artery. Presentation of a case].

Primary dissecting aneurysms of peripheral arteries without involvement of the aorta are rare. The present report deals with a case of dissecting aneurysm of the external iliac artery in a 39-old man treated by resection and prosthetic graft. Although the exact cause of the dissection was not apparent, it seems likely that it was related to disorder of connective tissue because of the presence of a pectus excavatum, a deep palate and an increased hydroxyproline urinary excretion.