Post-mortem angiographic and histologic findings of coronary artery fibromuscular dysplasia.

The present report highlights on exceptional angiographic and histologic features of coronary artery fibromuscular dysplasia in a young man complaining of chest discomfort during strenuous exercise. The striking features of fibromuscular dysplasia were the relative proximal localization of the lesion in left anterior descending coronary artery, the extensive length of the lesion, and the exclusive involvement of the intima producing a diffuse regular narrowing lesion. An eccentric intimal proliferation of the small left anterior descending coronary artery branches along their epicardial and intramural course was additionally demonstrated. No involvement of other coronary arteries or arteries of any other organs was observed.