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

Case Study A01-2: LCA from RC Sinus - Course High between PA and Ao

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Anomalous LCA adjacent to RCA origin.  LM segment has convex shape without perforators (indicating this is a ‘high’ variant).

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Anatomy – An anomalous LCA from the RC Sinus can run anterior to the PA, behind the aorta or, most commonly, between the PA and aorta.  In the latter position two variants are seen: a concave pathway low on sinus close to the septum (most common) and a convex pathway high on the sinus (as in this example).

Construction - (Select Settings > Choose Button Q Nums.) Q1.4.4 template is used.

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