Intercoronary communication between the circumflex and right coronary artery

Large intercoronary communication between the right coronary artery and the left circumflex artery in a patient with late stent thrombosis: A case report

“…The histological structure revealed well-defined muscular layer as normal arterial wall in ICC compared to collateral vessels, which has histological structure similar to arterioles [10 , 17 , 18] . In angiographic features, the intercoronary communications are single, extramural, straight and lager in diameter (>1 mm), whereas the collateral circulation is helical and no more than 1 mm in diameter [5 , 10 , 7] .…”

“…Two or more coronary arteries are connected between them, with open-ended circulation and unidirectional or bidirectional blood flow [3 , 4] . Compared to collateral vessels, ICC are single, extramural, straight and lager in diameter (>1mm), histologically well-defined muscular layer, and does not usually develop after coronary artery disease [5] , [6] , [7] . Unlike ICC, coronary artery fistulas (CAFs) are abnormal communications between the coronary arteries and cardiac chambers or major vessels, which may be congenital or acquired [8] .…”