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

Case Study A14-3: Single LCA with AV groove and retro-aortic extensions to RV

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LCA_LAO 27 Caud 29
Anomalous branches to RV from LCA (retrograde to aorta) and distal LCx are evident.

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LCA_LAO 29 Cran 29
Note small branch to RV from LM coursing posterior to aorta.

Anatomy – Could be classified as a small anomalous RCA from LCA coursing posterior to aorta and supplying proximal RV branches only. In addition, there is an AV groove extension of the LCx beyond the crux to acute margin. No other examples were seen among 50,000 angiograms in the 7 year Alberta series. 

Construction – (Select Settings > Choose Button Q Nums.) Template button Q2.3.3 was used with substantial modification and editing to capture this very rare situation.

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