SUBCLAVIAN ARTERY ANEURYSM ASSOCIATED WITH ABSENCE OF THE IPSILATERALINTERNAL CAROTID-ARTERY

A 48-year-old male presented with a rare subclavian artery aneurysm as sociated with absence of the ipsilateral internal carotid artery. The aneurysm was resected and replaced with a Gore Tex(R) artificial graft . Computed tomography, angiography, and cerebral blood flow findings s uggest that defect of the right internal carotid artery occurred in th e developmental stage. There was no past history of trauma, nor histol ogical evidence of inflammatory or sclerotic changes in the aneurysmal wall. The two vascular lesions may have been influenced by a synchron ous causative factor in his developmental stage.