Bronchiogenic Cysts: Presentation of a Case and Review of the Literature

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Abstract
BRONCHIOGENIC CYSTS are clinically rare, often fatal, and seldom mentioned in the otolaryngologic literature. The following terms are found to signify the same pathological lesion: (1) mediastinal cysts, (2) congenital ciliated columnar epithelial cysts of the mediastinum, (3) extrabronchial cysts, (4) thoracic cysts, (5) bronchogenic cysts, and (6) reduplication cysts of the respiratory tract. Congenital cystic disease, a cyst of and within the lung tissue, is not to be confused with the above entity. Embryology, Pathology, and Classification The esophagus, trachea, and bronchi arise from the foregut. The anterior aspect of the foregut forms the laryngotracheal ridge. The cephalic portion of the laryngotracheal ridge forms the larynx, and the caudal portion forms the trachea and lung buds. The esophagus arises from the posterior aspect of the foregut. As the esophagus develops, it becomes filled with many proliferating cells. These cells, which are often ciliated and columnar, develop fenestrations which

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