¹Atatürk Eğitim ve Araştırma Hastanesi Kalp ve Damar Cerrahisi Kliniği, İzmir Axillary arterial aneurysms are so rare. Unless !here are ischemic symptoms due ta rupture or thromboembolic comp­ lications they are asymptomatic. Our patient admitted ta a medical center and diagnosed as thorax anterior wall tu­ mour and had an incisional biopsy. But during the operation an extended hematoma developed due ta abandan he­ morrhagy and they sent the patient ta our clinic emergently. We are reporting this case and our surgical method in the light of literature Keywords : Axillary artery, pseııdoaneurysm, neıırologic damage