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  Indian J Med Microbiol
 

Figure 4: Grade III ependymomas (a) Perivascular pseudorosette with marked pleomorphism of cells. (Hematoxylin and eosin, ×40). (b) Microvascular proliferation (Hematoxylin and Eosin ×40). (c) High Ki67 index (Ki67 HRP-Polymer 100) (d) Most of the tumor cell nuclei showing positivity for p53. (p53 HRP-Polymer ×100)

Figure 4: Grade III ependymomas (a) Perivascular pseudorosette with marked pleomorphism of cells. (Hematoxylin and eosin, ×40). (b) Microvascular proliferation (Hematoxylin and Eosin ×40). (c) High Ki67 index (Ki67 HRP-Polymer 100) (d) Most of the tumor cell nuclei showing positivity for p53. (p53 HRP-Polymer ×100)