Fig. 6

Histopathologic findings of the lesion obtained by the coronary artery bypass graft. Histopathlogical findings of specimens that was obtained during coronary artery bypass graft showed fibromuscular intimal thickness, granulomatous inflammation with giant cells at media (a). Extremely thickened adventitia with fibrosis involving the myocardium and the epicardial nerve plexus was also observed (b)