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Washington University Experience | NEOPLASMS (EMBRYONAL) | ATRT - Atypical Teratoid Rhabdoid Tumor | 15B1 ATRT (Case 15) H&E 5
15B1-4 Sections showed a diffusely infiltrating small round blue cell tumor with large nuclei, vesicular chromatin pattern and scant cytoplasm. Admixed nests of larger cells with moderate amounts of eosinophilic cytoplasm, vesicular nuclei with prominent nucleoli (rhabdoid cells) are noted. There is increased mitotic activity and abundant necrosis.
