case_images: PMC11683255_01
case_images: Immunohistochemical staining with cytokeratin (CK) showing negative epithelial differentiation, excluding an epithelial tumor.
case_images: gr1.jpg
case_images: PMC11683255_01_gr1.jpg
case_images: f0005
case_images: Immunohistochemical staining with CD34 showing negative results, ruling out a vascular tumor.
case_images: gr2.jpg
case_images: PMC11683255_01_gr2.jpg
case_images: f0010