Mucoepidermoid carcinoma of the lung with hemoptysis as initial symptom: A case report

Figure 1 Preoperative chest computed tomography images. A: Lung window; B: Mediastinal window; C: Enhanced computed tomography. The nodule of the left main trachea is seen, with obvious uniform enhancement.

Figure 2 Electronic bronchoscopy. A: Preoperative bronchoscopy Showing that a spherical lesion could be seen in the main bronchus 1.5 cm away from the protuberance; B: Postoperative bronchoscopy showing that the lumen was unobstructed.

Figure 3 Pathological staining. A: HE staining (10 × 10); B: PAS staining (+) (10 × 10).

Figure 4 Immunohistochemical results. A: CD117 (+) (10 × 20); B: Carcinoembryonic antigen (+) (10 × 20); C: Cytokerain (+) (10 × 20); D: CK5/6 (+) (10 × 20); E: CK7 (+) (10 × 20); F: CK-H (+) (10 × 20); G: Ki67 (+) (10 × 20); H: P40 (+) (10 × 20); I: P63 (+) (10 × 20).

Figure 5 Postoperative chest computed tomography images. The left main trachea is unobstructed. A: Lung window; B: Mediastinal window.