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Preoperative MRI. Axial FLAIR and T2 (A and B) images showing CSF-consistency parenchymal cysts extending from the tumor to the subcortical region (asterisk). Contrasted T1 images (C axial and D coronal) show the atrial tumor (asterisk) and the surgical corridor through the parenchymal cysts (red arrow). Figure E shows the satellite lesion (white arrow) in the distal aqueduct causing the clinical hydrocephalic presentation. MRI: magnetic resonance imaging.
