Limitation of coronary angiography in the evaluation of a coronary aneurysm

This case involves a 43-year-old asymptomatic male with systemic arterial hypertension, diabetes mellitus and chronic renal dialysis. Transthoracic Doppler echocardiography was performed to assess left ventricular function, and a mass adjacent to the right ventricle on the diaphragmatic surface was noted. Magnetic resonance imaging revealed a right coronary artery aneurysm located in the distal segment, with a diameter of 3.9 x 3.5 cm in its major axes, covered by an eccentric circumferential mural thrombus (). Coronary angiography revealed diffuse dilatation [...]