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Primitive Neuroectodermal Tumor

slide 22 of 28


Comments:
This case of PNET arising in the kidney shows prominent rosette formation. PNET usually shows immunoreactivity for CD99, FLI-1 (carboxy terminus of FLI-1 fusion protein) and are negative for WT-1. Am J Surg Pathol 2002 March; 26(3):320-7.

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