Solitary fibrous tumor of the renal pelvis: A case report

Figure 1 Computed tomography images showed a mass in the right renal pelvis (diameter: 2. 3 cm × 1.8 cm). Contrast-enhanced image showed a well delineated outline of the mass. A: Arterial phase computed tomography (CT); B: Cross-section CT (venous phase); C: Coronal contrastenhanced CT image; D: Sagittal surface contrastenhanced CT image. Red arrows indicate right renal pelvis solitary fibrous tumor lesion.

Figure 2 Pathological specimen of the kidney and ureter. A: Photograph of the tumor; B: Hematoxylin and eosin (H&E)-stained section (magnification × 5); C: H&E-stained section (magnification × 40); D: H&E-stained section (magnification × 200).

Figure 3 Immunohistochemistry results (× 20). A: Bcl-2; B: CD34; C: CD99; D: Ki67; E: STAT6; F: Vimentin.