Atherosclerosis Thin-cap fibroatheroma 2017-05-18T02:45:29Z TCFA Thin-cap fibroatheroma is characterized by a relatively large necrotic core with an overlying thin fibrous cap measuring less than 65 micrometers and typically containing numerous macrophages, and is considered to be the precursor lesion of plaque rupture which is the most common cause of coronary thrombosis.