Adrenal bronchogenic cyst masquerading as an incidentaloma: Case report and review of literature

Abstract

Bronchogenic cysts are, rare developmental anomalies of ventral foregut, resulting from an aberrant budding of primitive tracheobronchial tree during third to seventh week of gestation. They are commonly found in thoracic cavity, in the region of posterior mediastinum and rarely at other sites like retroperitoneum. Retroperitoneal bronchogenic cysts involving adrenal gland is exceptionally rare with only fifty cases of adrenal bronchogenic cysts reported in literature. We present a case of a young 30 year old adult male who presented with left flank pain and right inguinal hernia. Contrast enhanced CT abdomen revealed a hypodense lesion in the region of left adrenal gland. The patient underwent open excision of tumor with Left adrenalectomy and was discharge on postoperative day five. Histopathologically, the tumor was seen to be lined with ciliated columnar epithelium suggestive of bronchogenic cyst. No complications or recurrence occurred after three years of follow up. Adrenal bronchogenic cysts are exceptionally rare tumors. It should be considered as differential diagnosis of Adrenal Incidentaloma.