Department of General Surgery, Hospital Italiano de Buenos Aires, Argentina (Drs. Dietrich, Santos). Department of HPB Surgery, Hospital Italiano de Buenos Aires, Argentina (Drs. de Santibañes, Cristiano, Sanchez Clariá). Department of Pathology, Hospital Italiano de Buenos Aires, Argentina (Dr. Santino).

ABSTRACT

Bronchogenic cysts are rare, benign, congenital anomalies of the primitive foregut encountered in the posterior mediastinum. Retroperitoneal location is uncommon, with only a few cases reported in the literature.

We present a 46-year-old man who was examined for a complaint of nonspecific chronic abdominal pain. An abdominal computed tomography scan and magnetic resonance imaging scan were performed and revealed a mass in the peripancreatic region in relation to the left adrenal gland. Because a definitive diagnosis was uncertain, the patient underwent a laparoscopic resection. The pathology showed a cystic lesion consistent with retroperitoneal bronchogenic cyst. The patient had an uneventful postoperative recovery.

Surgical resection of these lesions is mandatory to arrive at a differential diagnosis with other retroperitoneal lesions. The laparoscopic approach should be performed by experienced surgeons.

Key Words: Bronchogenic cysts, Retroperitoneal mass, Laparoscopic resection.

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