case_images: PMC5012812_01
case_images: Abdominal and pelvic computed tomography scan showed the presence of a large tissue process at the upper pole of the right kidney measuring 8 cm of diameter, demonstrating heterogeneous contrast enhancement
case_images: PAMJ-24-64-g001.jpg
case_images: PMC5012812_01_PAMJ-24-64-g001.jpg
case_images: F0001
case_images: Several small lymphadenopathy in the right hilar area (Figure 1, Figure 2, Figure 3).
case_images: Abdominal and pelvic computed tomography scan showed that the process extends over the hilar area with invasion of the right renal vein, while the lower vena cava is permeable
case_images: PAMJ-24-64-g002.jpg
case_images: PMC5012812_01_PAMJ-24-64-g002.jpg
case_images: F0002
case_images: Several small lymphadenopathy in the right hilar area (Figure 1, Figure 2, Figure 3).
case_images: Abdominal Computed tomography scan showed Several small lymphadenopathy in the right hilar area
case_images: PAMJ-24-64-g003.jpg
case_images: PMC5012812_01_PAMJ-24-64-g003.jpg
case_images: F0003
case_images: Several small lymphadenopathy in the right hilar area (Figure 1, Figure 2, Figure 3).
case_images: High-power magnification demonstrating histiocytic proliferation with intracytoplasmic lymphocytes (emperipolesis, arrows), Hematoxylin-eosin stain, original magnification x40
case_images: PAMJ-24-64-g004.jpg
case_images: PMC5012812_01_PAMJ-24-64-g004.jpg
case_images: F0004
case_images: The final histological examination of the renal mass and regional lymph node showed "emperipolesis", which is characterized by intact inflammatory cells in the cytoplasm of large histiocytes (Figure 4).
case_images: High-power magnification with cytoplasmic immunostaining of histiocytic marker (CD68) highlighting proliferating cells (CD68 stain, original magnification x40)
case_images: PAMJ-24-64-g005.jpg
case_images: PMC5012812_01_PAMJ-24-64-g005.jpg
case_images: F0005
case_images: Histiocytes were positive for CD-68 and negative for CD10, anti CKE1/AE3, antiCK8/18, anti CK19, antidesmine, antiHcaldesmone, CD56, anti synaptophysine, antivimentine and antiMelanA (Figure 5).