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Figure 2: Photomicrographs showing a biphasic tumour comprising of astrocytic and primitive neuroectodermal components. The astrocytic areas showing oval to spindle cells, gemistocytes, and areas of necrosis with psedopallisading of cells (a and b, H and E ×400); Primitive neuroectodremal component is composed of small round to oval cells with hyperchromatic nuclei anf increase mitises (c, H and E ×400). Glial component is immunopositive for GFAP (d) but primitive neuroectodremal component is negative (e) and it is focally immunipositive for Neu N (f, ×400 each)

Figure 2: Photomicrographs showing a biphasic tumour comprising of astrocytic and primitive neuroectodermal components. The astrocytic areas showing oval to spindle cells, gemistocytes, and areas of necrosis with psedopallisading of cells (a and b, H and E ×400); Primitive neuroectodremal component is composed of small round to oval cells with hyperchromatic nuclei anf increase mitises (c, H and E ×400). Glial component is immunopositive for GFAP (d) but primitive neuroectodremal component is negative (e) and it is focally immunipositive for Neu N (f, ×400 each)