Retroperitoneal Bronchogenic Cyst: Imaging and Pathophysiological Review

Bronchogenic cysts are rare lesions that form during early embryogenesis and are commonly located in the mediastinum. Retroperitoneally located bronchogenic cysts are an exceptionally rare entity. These are most commonly found incidentally on imaging. We will review the unique imaging and histopathological findings of this entity and discuss why prophylactic surgery is considered the treatment of choice. By reviewing retroperitoneal bronchogenic cysts, we aim to educate clinicians regarding the presentation, investigations, imaging characteristics, and treatment of this exceeding rare entity.