PMC4897999_01
70-year-old male with renal mass. Axial CT demonstrates a 15.5cm predominantly cystic tumor occupying the mid and lower poles of the right kidney. The left kidney is normal.
gr1.jpg
PMC4897999_01_gr1.jpg
fig1
The CT revealed a 15.5cm predominantly cystic tumor occupying the mid and lower poles of the right kidney and a normal left kidney (Fig. 1).
70-year-old male with renal mass. Coronally reformatted CT again demonstrates a large mass involving the mid and lower poles of the right kidney and elevating the liver.
gr2.jpg
PMC4897999_01_gr2.jpg
fig2
The macroscopic examination of the resected specimen revealed a heterogeneous tumor mass, partly haemorrhagic, measuring 13.0 x 11.0 x 5.5cm (Fig. 2).
70-year-old male with renal mass. Gross specimen of the heterogeneous and partly hemorrhagic tumor mass, measuring 13.0 x 11.0 x 5.5cm.
gr3.jpg
PMC4897999_01_gr3.jpg
fig3
Histological examination revealed this very large tumor to be, surprisingly, an oncocytoma (Fig. 3).