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FIG 1. MR images obtained in a 32-year-old woman who presented with headache and progressive right hemiparesis; MR images revealed multilobular CSF-filled expanding spaces at the MDJ and ventricular dilatation. She underwent endoscopic fenestration of the cyst wall and became free of the neurologic deficits. (Reproduced with permission from reference 12.)
T1-weighted axial (A), coronal (B), and sagittal (C) images reveal multilobular, CSF-filled, expanding spaces at the MDJ.