Distal LAD filling from homocollaterals – coronary angiogram

Distal LAD filling from homocollaterals – coronary angiogram

Distal LAD filling from homocollaterals

Left coronary angiogram showing total occlusion of left anterior descending coronary artery (LAD) with retrograde filling of distal LAD from homocollaterals. LMCA: Left main coronary artery; LCX: Left circumflex coronary artery. Here the collaterals are seen originating from a major diagonal branch of the LAD. The diagonal is originating proximal to the total occlusion and is a sizable vessel supplying homocollaterals (from the same vascular territory) to distal LAD. A right coronary injection would have shown whether there are hetero collaterals (from another vascular territory).

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