Faces of Cysts Hyperdense CT Hyperdense – Hemorrhagic CystCT scan without contrast in the axial plane shows an exophytic hyperdense cyst in the mid portion of the left kidney. The commonly found simple cyst with water density is seen posteriorly for comparison. Subsequent ultrasound and MRI confirmed the benign hemorrhagic nature of the cystAshley Davidoff MD TheCommonVein.net 130706 Not All Hyperdense Lesions are Cysts CT of an Enhancing, Hyperdense, Renal NoduleCT through the kidneys reveal a hyperdense nodule that measured 56.HU. Following contrast, the density of the nodule increased to 101.8 HU. An enhancing mass in the kidney is highly suspicious for a renal cell carcinomaAshley Davidoff MD TheCommonVein.net 135674