PMC6796631_01
CT scan-Coronal view demonstrating huge left renal mass.
gr1.jpg
PMC6796631_01_gr1.jpg
fig0005
Part of the mass appeared in subcapsular location and causing significant mass effect over the left kidney with invasion into the renal pelvis and perirenal fascia (Figs. 1 and 2 ).
CT scan- axial view indicating left renal mass at the inferior pole.
gr2.jpg
PMC6796631_01_gr2.jpg
fig0010
Part of the mass appeared in subcapsular location and causing significant mass effect over the left kidney with invasion into the renal pelvis and perirenal fascia (Figs. 1 and 2 ).
Microscopic view for the tumor showed uniform round small cells.
gr3.jpg
PMC6796631_01_gr3.jpg
fig0015
On histopathological studies, the tumor was highly cellular; the tumor cells were uniform with round to oval nuclei, finely dispersed chromatin, inconspicuous nucleoli and ill-defined scant pink cytoplasm (Fig. 3).
The tumor cells stained positively diffusely for CD99.
gr4.jpg
PMC6796631_01_gr4.jpg
fig0020
The cells stained strongly positive for CD 99 (Fig. 4).