Abstract
We describe congenital esophagobronchial fistula in a 50-year-old female who initially presented elsewhere with a chief complaint of hemoptysis. Chest CT revealed signs of inflammatory change and bronchial dilation mainly in the superior segment of the right lower lobe of the lung (S6). She was diagnosed with esophagobronchial fistula and referred to our institution for surgery. Marked adhesions were located around the pulmonary artery due to inflammation, and the fistula was surrounded by a small number of adhesions. The fistula and diverticulum were excised using a linear stapler, a right lower lobectomy was performed, and the bronchus and fistula stump were covered with an intercostal muscle flap. The pathological findings showed stratified squamous epithelium and muscularis mucosa in the fistula, with a transition to columnar epithelium.