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Washington University Experience | NEOPLASMS (EMBRYONAL) | ATRT - Atypical Teratoid Rhabdoid Tumor | 9C1 ATRT (Case 9) N19 H&E WM
9C1-4 Sections of leptomeninges show patchy collections of a primitive cellular neoplasm. The tumor consists of embryonal tumor cells with brisk mitotic activity which fail to form differentiated structures such as glands or neuroblastic rosettes.
