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  Indian J Med Microbiol
 

Figure 5: Plain radiograph pelvis showing a tumor involving pelvic bone and soft tissues (arrow head) with areas of calcification ('ring' and 'arc'). (b) Microscopy: tumor comprising malignant round cells arranged in a hemagiopericytomatous pattern, juxtaposed with cartilaginous component (asterix) (H and E, ×400). (c) Immunohistochemically, tumor cells displaying cytoplasmic positivity for CD99/MIC2 (Diaminobenzidine, ×400). (d) S100 protein distinctly highlighting the chondroid component (Diaminobenzidine, ×400)

Figure 5: Plain radiograph pelvis showing a tumor involving pelvic bone and soft tissues (arrow head) with areas of calcification ('ring' and 'arc'). (b) Microscopy: tumor comprising malignant round cells arranged in a hemagiopericytomatous pattern, juxtaposed with cartilaginous component (asterix) (H and E, ×400). (c) Immunohistochemically, tumor cells displaying cytoplasmic positivity for CD99/MIC2 (Diaminobenzidine, ×400). (d) S100 protein distinctly highlighting the chondroid component (Diaminobenzidine, ×400)