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Pre- and postoperative imaging. (A) Axial T1 3-dimensional post-gad magnetic resonance imaging (MRI) at presentation, showing lateralized tumor with ventricular and brainstem compression and (B) supratentorial component. (C) Axial Se T1 post-gad MRI, demonstrating resection with residual fourth ventricular disease, and (D) Axial T1 cub reformat post-gad MRI after receipt of chemotherapy and second-look surgery
