Left lower lobe sleeve resection for the clear cell variant of pulmonary mucoepidermoid carcinoma: A case report

Figure 1 Preoperative patient examination. A: Chest computed tomography (CT) scan with enhanced imaging revealed a 2-cm soft tissue density nodule situated in the left main bronchus, resulting in complete atelectasis of the left lung; B: Electronic bronchoscopy image showed a polypoid tumor obstructing the left main bronchus, featuring a surface covered with gray yellow necrotic material; C: CT imaging demonstrated signs of recruitment in the left upper lung after endoscopic treatment, while the mass in the left main bronchus persisted; D: Whole-body positron emission tomography/CT scan revealed metabolically active lesions indicative of malignancy, with the tumor location highlighted by a red arrow.