Computed Tomography of High Density Renal Cysts

Eleven patients are described whose computed tomography (CT) examinations showed homogeneous, high density (62–76 Hounsfield units) renal masses. In two patients a hemorrhagic benign cyst was found at surgery. In the remaining nine patients the constellation of CT and clinical findings supported the benign nature of this lesion. Index Terms: Kidney, cysts—Kidney, hemorrhage—Computed tomography.