Bronchogenic cysts with infection in the chest wall skin of a 64-year-old asymptomatic patient: A case report

Figure 3 Postoperative histopathology. A: Combined with immunohistochemical staining for CK7 (+), CK20 (-), TTF1 (-) and S-100 (-), the histopathological examinations showed that the specimen was consistent with a bronchogenic cyst with obvious hyperplasia of histiocytes (× 100); B: The white arrows represent column-like cilia epithelial cells; C: Smooth muscle bundles; D: Bronchial glands.