Figure 3.

Computed tomography (CT) appearance of the cystic nephroma mimicking a Bosniak III lesion. 78-year-old female with a history of limb and lower back pain, and expansive subcostal pain in the past months. Thickened irregular wall and septa with contrast enhancement can be observed in the upper third of the right kidney. Unenhanced (a), corticomedullary (b), nephrographic (c) and excretory phases (c) axial CT images. Macroscopic documentation (e) with H and E stained histological sections at magnification ×1 (f) and ×20 (g)