Abstract
Tracheal diverticulum is rarely encountered in a clinical setting since almost all patients are asymptomatic. However, its presence may become a problem during esophageal cancer operations in terms of anesthesia and lymph node dissection of superior mediastinum lymphadenectomy. A 70-year-old man with esophageal cancer was referred to our hospital. During thoracoscopic subtotal esophagectomy, we found a cystic lesion connected to the right posterior wall of the trachea. We evaluated the preoperative computed tomography scan during surgery and made a diagnosis of tracheal diverticulum because of the presence of paratracheal air cysts, which had not been noticed preoperatively. It was resected by a linear stapler and the postoperative course of the patient was uneventful. A careful preoperative evaluation of computed tomography and operation are necessary to avoid injury of tracheal diverticulum during thoracoscopic esophagectomy for esophageal cancer revealing a tracheal diverticulum.
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