Figure 2: Photomicrograph of tumor showing (a) cartilaginous component admixed with stromal component (H and E, x100); (b) stromal component composed of oval to spindle shaped cells displaying moderate pleomorphism, with hyperchromatic nuclei and inconspicuous nucleoli (H and E, x400); (c) Stromal cells arranged in hemangiopericytoma-like pattern in the tumour. (H and E, x400); (d) IHC showing S-100 positivity in cartilaginous component