Mature mediastinal bronchogenic cyst with left pericardial defect: A case report

Figure 3 The pathological diagnosis of the tumor was a bronchial cyst. The orange arrow refers to the pseudolayer ciliar epithelium, the yellow arrow refers to the bronchial glands, the blue arrow refers to the cartilage tissue, and the green arrow refers to the fat tissue. Tumor tissues were fixed with 10% neutral formaldehyde, embedded in paraffin, and then stained with hematoxylin and eosin (200 ×).