CARAT Case Studies: Coronary Artery Variants and Anomalies (CAVA)

Case Study A04-1: LCA from RCA behind Aorta

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LAO 6 Cran 26
Dominance of RCA evident by large PL and PDA extending around apex with a diminutive anomalous LCA.

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LAO 44 Caud 28
Retro-aortic pathway of LCA from RC sinus.

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RAO 34
Retro-aortic pathway of LCA confirmed; anomalous and axially-oriented SP from pRCA seen mid screen.

Anatomy – The anomalous LCA is very diminutive in this example with a large PL supplying most of lateral wall and the large PDA supplies a large anteroapical region as well. Most of the anteroseptal region is supplied by an axially-oriented SP from the proximal RCA.

Construction – (Select Settings > Choose Button Q Nums.) Template button Q1.4.3 sets the stage for is anomaly; Q28.3 presents the septal perforator variation.

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