case_images: PMC9760415_01
case_images: A computerized tomography (CT) scan showed: (A) Mass in the right kidney (arrow), two masses were attached to the liver tightly (arrow). (B) Oblique view of mass in the right kidney with low enhancement (arrow).
case_images: JKCVHL-9-014-g001.jpg
case_images: PMC9760415_01_JKCVHL-9-014-g001.jpg
case_images: F1
case_images: There was some fat stranding around the masses but no signs of organ invasion (Figure 1).
case_images: (A) Short fascicles of spindled myofibroblastic cells without overt atypia admixed with acute and chronic inflammatory cells (200x). (B) Ganglion-like polygonal cells with large rounded nuclei and prominent nucleoli (400x). Immunohistochemistry (IHC) analyses revealed positive reaction for (C) smooth muscle actin (SMA) and (D) Ki-67 (5%).
case_images: JKCVHL-9-014-g002.jpg
case_images: PMC9760415_01_JKCVHL-9-014-g002.jpg
case_images: F2
case_images: The mitotic activity was low, with only 5-10 mitoses per 10 high power fields (HPFs) (Figure 2).
case_images: Immunohistochemistry (IHC) analyses revealed negative reactions for (A) CD34, (B) Activin receptor-like kinase (ALK), (C) Pan-cytokeratin, and (D) Desmin.
case_images: JKCVHL-9-014-g003.jpg
case_images: PMC9760415_01_JKCVHL-9-014-g003.jpg
case_images: F3
case_images: Immunohistochemistry (IHC) analysis was positive for smooth muscle actin (SMA) and Ki-67 (5%), and negative for CD99, CD34, activin receptor-like kinase (ALK), STAT6, Pancytokeratin, and Desmin (Figure 3).