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  Indian J Med Microbiol
 

Figure 3: (a) Photomicrograph of peripheral primitive neuroectodermal tumor (H and E X10 Objective) The photomicrograph shows a right leg mass lesion displaying small round tumor cells with numerous pseudorosettes (arrows). (b) Peripheral primitive neuroectodermal tumor showing +3 positivity for CD99 antibody. The reaction is seen as membranous staining in tumor cells with numerous display of rosettes (IHC X10 Objective)

Figure 3: (a) Photomicrograph of peripheral primitive neuroectodermal tumor (H and E X10 Objective) The photomicrograph shows a right leg mass lesion displaying small round tumor cells with numerous pseudorosettes (arrows). (b) Peripheral primitive neuroectodermal tumor showing +3 positivity for CD99 antibody. The reaction is seen as membranous staining in tumor cells with numerous display of rosettes (IHC X10 Objective)