Laparoscopic Resection of a Retroperitoneal Bronchogenic Cyst—A Case Report—

Abstract

A 67-year-old woman underwent computed tomography before an operation for bladder cancer, and was found to have a 21-mm cystic lesion under the left diaphragm. We additionally performed magnetic resonance imaging and positron emission tomography examination, but still had difficulty making a preoperative diagnosis. Thus, laparoscopic surgery was performed for therapeutic diagnosis.

The tumor was 22×17×5 mm in size. Pathological findings revealed a ciliated epithelium, smooth muscle, colleterial gland, and cartilage. As a result, we made a diagnosis of a bronchogenic cyst.

The bronchogenic cyst is a congenital cyst occurring for a lesion derived from foregut of the developing in the bronchus formative period. Most cases occur in the lungs and posterior mediastinum, and cases occurring in the retroperitoneum are rare. We report a rare case with bibliographic considerations.