Secondary coronary artery ostial lesions: Three case reports

Figure 1 Electrocardiography and imaging manifestations of Case 1. A: Electrocardiography showed atrial fibrillation, complete right bundle branch block and depressed ST segment of 0.1–0.3 mV in leads V1-V6; B: Chest X-ray was normal; C: Coronary angiography showed severe stenosis in the left main coronary ostium; D: Chest computed tomography (CT) showed thymic carcinoma involving the middle mediastinum; E: Chest CT showed thymic carcinoma involving the middle mediastinum, which also invaded the left main coronary ostium. LM: Left main.