Role of positron emission tomography in primary carcinoma ex pleomorphic adenoma of the bronchus: A case report

Figure 1 Chest computed tomography showed a tumor located in the left upper lobe of the lung with suspected endobronchial lesions and obstructive pneumonitis. Vessel invasion could not be excluded.

Figure 2 Whole-body positron emission tomography scan. A smaller diameter of the metabolically active region of the tumor compared with the tumor size was revealed by chest computed tomography.

Figure 3 Pathology images. A: Epithelial cells formed a duct-like structure, with occasional mucin production; B: Chondromyxoid and hyalinizing matrix as the background, and bronchial cartilage invasion were found; C: Weakly positive reactivity to synaptophysin in tumor cells indicated that a carcinoid lung tumor was unlikely; D: Myoepithelial cells positive for S-100 protein.