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Washington University Experience | NEOPLASMS (EMBRYONAL) | ATRT - Atypical Teratoid Rhabdoid Tumor | 4F1 ATRT (Case 4) INI1 1.jpg
4F1,2 A stain for INI-1 (BAF47) reveals nuclear immunoreactivity within normal endothelial cells, but loss of expression in tumor cell nuclei. (INI1 IHC)
