Adrenal myelolipomas: CT appearance with tiny amounts of fat and punctate calcification.

Five cases of myelolipoma of the adrenal are presented which contained only tiny foci of fat along with areas of punctate calcification. This computed tomographic (CT) appearance is less common for this neoplasm and has only been described in three of 26 previously published CT cases of this adrenal tumor. The presence of even tiny amounts of fat in an adrenal mass should alert the radiologist to the probable diagnosis of myelolipoma. Small foci of calcification are also frequently associated.