CT demonstration of a giant adrenal endothelial cyst of the angiomatous subtype

Adrenal cysts are uncommon lesions with only approximately 300 having been reported to date. Histologically, they are heterogeneous in nature with angiomatous endothelial cysts being quite rare. The computed tomography of a woman with a very large cyst of this variety displayed thin walls with a few septations and foci of soft tissue within. The possibility of a large cystic mass originating from the adrenal gland must be considered in the diagnosis when a large abdominal mass is encountered.