Young patient with a giant gastric bronchogenic cyst: A case report and review of literature

Figure 1 Imaging at admission. Endoscopic ultrasound revealed a 6.5 cm × 4.0 cm single cyst. The cyst, without any echoes or color flow signals, was located in the posterior wall of the gastric body. These results indicated the possibility of a cyst of the stomach.

Figure 2 Imaging at admission. A: An enhanced computed tomography scan demonstrated a 10.1 cm × 6.1 cm mass. The mass was present in the posterior part of the stomach between the spleen and the left kidney; a large, slightly high-density swelling shadow with uniform internal density was shown; and a small calcification shadow could be seen at the rear. The computer tomography (CT) value was approximately 70 HU, and the gastric wall was compressed and changed; B: Noncontrast CT image; C: It can be clearly seen from the sagittal position that the diaphragm was compressed by the mass.

Figure 3 Histopathological analysis and immunohistochemical examination of the resected specimen. A: Microscopically, pseudostratified ciliated columnar epithelial cells could be observed in the cyst lining, and smooth muscle and small salivary gland tissue could be observed in the cyst; B: Napsin A (+); C: CK20 (-); D: P63 (+); E: SMA (+); F: Desmin (+); G: CK7 (+); H: TTF-1 (+); I: Elastic fiber (+).