Abstract
This report documents a bronchogenic cyst presenting as an adrenal tumour in a 51 year old man with persistent epigastric pain. The cyst is regarded as a developmental abnormality of the primitive foregut, which typically occurs in the chest. Subdiaphragmatic, and retroperitoneal locations in particular, are unusual. The differential diagnosis of a bronchogenic cyst in the retroperitoneum includes cystic teratoma, bronchopulmonary sequestration, cysts of urothelial and mullerian origin, and other foregut cysts.
Key Words: bronchogenic cyst • retroperitoneum • adrenal • differential diagnosis
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Figure 1 Computed tomographic scan showing a 5 cm solid mass in the left suprarenal region (arrow) compressing the adrenal gland laterally.
Figure 2 The cyst lining composed of respiratory-type epithelium, underlying lamina propria containing cartilage, and mixed mucous and serous glands (haematoxylin and eosin; original magnification, x400).