Fig. 1 Coronary angiography shows A) the right coronary artery (RCA) affected in its proximal portion (arrow), and B) a dissection line (black arrows) that extends from the left main trunk to the diagonal branch (D), with narrowing of the lumen of the entire left anterior descending coronary artery (LAD) and involvement of the left circumflex coronary artery (LCX) at the level of the 1st marginal branch (white arrows).