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A, Axial T1-weighted (650/14/1) image shows dilatation and distortion of the fourth ventricle with a hyperintense scolex (arrow).
B, On T2-weighted (3800/90/2) image, the internal details of the lesion are obscured by the surrounding hyperintense CSF.
C, Axial 3D-CISS (12.3/5.9/1) image shows a dilated fourth ventricle, within which the scolices (asterisk ) and wall (arrow ) of the cyst are clearly seen.
