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Washington University Experience | NEOPLASMS (EMBRYONAL) | ATRT - Atypical Teratoid Rhabdoid Tumor | 5F1 ATRT (Case 5) INI1 5.jpg
5F1,2 There is loss of INI-1 expression in tumor cell nuclei but not in the non-neoplastic endothelial cells (INI1 IHC).