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Chest computed tomography scan and magnetic resonance imaging scan of the brain after the treatment. (A) Chest computed tomography scan after the chemotherapy revealed shrinkage of the primary lesion (arrow), which was evaluated as a partial response. (B) An axial T1-weighted magnetic resonance imaging with gadolinium injection after the stereotactic radiation and chemotherapy showing resolution of hydrocephalus, and shrinkage of the pineal region tumor (arrow).
