Ruptured carotid aneurysm revealing a Behcet's disease.

We report the case of a 20-year-old male who was operated for a large ruptured aneurysm of the right common carotid artery, revealing a Behcet's disease. The aneurysm was excised and the right common carotid artery was repaired with a polytetrafluoroethylene prosthesis. None of the criteria of the International Study Group for Behcet's disease was present at the time of the diagnosis.