ATHEROSCLEROTIC ANEURYSM FORMATION IN AN IN-SITU SAPHENOUS-VEIN GRAFT

Nonanastomotic aneurysm formation in autogenous vein grafts, although rarely described, has been uniformly associated with advanced atherosc lerotic change of the vein wall. In the case reported histologic exami nation of an in situ vein graft aneurysm demonstrates obliteration of normal vessel wall architecture by penetrating atherosclerotic plaque. Although these findings do not prove a causal relationship, they do p rovide additional support for atherosclerosis as an etiologic factor i n aneurysm disease.