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Figure 2 CCTA and Schematic Drawings: Intramuscular LAD, Superficial Type

Intramuscula LAD, superficial type, as seen on axial plane (A, B) and multiplanar reformation (C, D). The mid LAD (arrow) shows a typical deviation and straitening and is only partially surrounded by myocardium. Of note, an atherosclerotic plaque in the proximal LAD, whereas the intramuscular segment is free of disease. Abbreviations as in Figure 1.