Abstract
BackgroundBronchogenic cyst is congenital aberration of bronchopulmonary malformation, which is rarely encountered in the abdomen and retroperitoneum. We present a case report and literature review of retroperitoneal bronchogenic cyst.Case presentationA 53-year-old female presented to outpatient clinic for a routine checkup of lumbar intervertebral disc herniation. She received a contrast computed tomography scan of the abdomen which revealed a retroperitoneal cystic lesion below the left crura of diaphragm. Afterward, the patient underwent a laparoscopic excision of the cystic lesion and was discharged uneventfully at postoperative day 4. Histopathological findings confirmed the diagnosis of retroperitoneal bronchogenic cyst. Our literature review identified 55 adult cases in recent two decades. The average age at diagnosis was 43.2 (range 17–69) years. 44 (80%) cases had a retroperitoneal cyst on the left side, and 52 (94.5%) cases underwent curative excision through open or laparoscopic surgery. In the available follow up of cases, there was no recurrence after surgery.ConclusionsBronchogenic cyst is rare in the retroperitoneal region. It should be considered as one of the differential diagnoses of a retroperitoneal neoplasm.
Highlights
BackgroundBronchogenic cyst is rare, benign congenital malformation of the tracheobronchial tree within the early embryologic foregut period [1]
Bronchogenic cyst is congenital aberration of bronchopulmonary malformation, which is rarely encountered in the abdomen and retroperitoneum
Bronchogenic cyst is rare in the retroperitoneal region
Summary
Bronchogenic cyst is rare, benign congenital malformation of the tracheobronchial tree within the early embryologic foregut period [1]. Case presentation A 53-year-old female patient presented to the outpatient clinic of local hospital in June 2017 (day 0) for routine checkup of lumbar intervertebral disc herniation. She underwent a magnetic resonance imaging (MRI) scan that revealed a round small mass in the retroperitoneal space. Serum tumor markers including carbohydrate antigen 19-9 (CA19-9), carbohydrate antigen 125 (CA125) and carcinoembryonic antigen (CEA) were all within normal ranges Afterward, she received abdominal contrast-enhanced computed tomography (CT) scans, which revealed a well circumscribed cystic lesion, measuring 3.3 × 2.7 × 3.5 cm and filling with non-enhancing fluid-density collections, in her retroperitoneal region (Fig. 1). She continued her daily activities without any limitation and had no evidence of recurrence within two years of follow-up
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