Primary splenic histiocytic sarcoma: A case report and review of literature

Figure 1 Ultrasonic, Radiological, gross, and histopathological findings of the splenic tumor. A: Abdominal ultrasound image showing the splenic tumor (approximately 11.2 cm × 13.6 cm); B: Non-contrast axial computed tomography (CT) image of the upper abdomen showing the splenic tumor; C: Contrast-enhanced axial CT image (arterial phase) of the upper abdomen demonstrating the splenic tumor; D: Contrast-enhanced coronal CT image of the upper abdomen revealing the splenic tumor (approximately 8.8 cm × 11.6 cm × 11.8 cm); E: Gross specimen of the resected spleen (the resected spleen measured approximately 14 cm × 12 cm × 7 cm. Upon sectioning, a tumor measuring about 12 cm × 10 cm × 9 cm was observed, occupying nearly the entire splenic parenchyma); F: Photomicrograph of splenic tissue (hematoxylin and eosin staining, × 20 magnification); G: Another photomicrograph of splenic tissue (hematoxylin and eosin staining, × 20 magnification); H: Photomicrograph of splenic tissue showing immunohistochemical staining (× 20 magnification).