Left coronary angiogram showing a type III left anterior descending (LAD) coronary artery with a proximal narrowing (black arrow). Type I LAD does not reach up to the apex while type II reaches up to the apex. Type III LAD curves around the apex to supply a portion of the inferior wall as well. LMCA (yellow arrow): left main coronary artery; LCX (blue label): left circumflex coronary artery. Narrowing of the proximal region of the middle branch of the LCX is also seen (not marked). It is an obtuse marginal (OM) branch. This angiogram has been taken in the postero-anterior projection with a cranial angulation (PA Cranial). It is a good view for the mid and distal regions of the LAD to be visualized in full length. Caudally tilted views are better for the proximal regions.
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