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Washington University Experience | NEOPLASMS (EMBRYONAL) | ATRT - Atypical Teratoid Rhabdoid Tumor | 2A2 AT-RT (Case 2) H&E 40X 2
This is a high-grade neoplasm composed of sheets of large epithelioid cells, aggregates of primitive cells with scanty cytoplasm, and cords of highly atypical cells in a myxoid background. Most prominent are multiple aggregates of large cells with eccentric, vesicular nuclei, prominent nucleoli, and eosinophilic paranuclear inclusions. Numerous mitotic figures, apoptotic debris, and massive tumoral necrosis are noted.
