Retroperitoneal bronchogenic cyst: A case report

Abstract

A 30-year-old man was referred to our hospital for investigation of a retroperitoneal mass. Computed tomography and magnetic resonance imaging confirmed a retroperitoneal cyst about 8 cm in diameter adjacent to the left adrenal gland. At that time, we punctured under diagnosis of an adrenal cyst. Eighteen months later, the cyst recurred and we performed laparoscopic surgery. Histopathologically, the cyst wall was composed of well-differentiated hyaline cartilage, smooth muscle, and mucous glands, which were lined with respiratory epithelium. Final diagnosis was a bronchogenic cyst. Retroperitoneal bronchogenic cysts are rare congenital anomalies and can be managed with laparoscopic surgery.