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contentuptodate· Content· item f9_58_10144
©2013 UpToDate ® Print Email Aqueductal stenosis due to a tectal lesion Sagittal T1 weighted magnetic resonance imaging (MRI) showing aqueductal stenosis. The hydrocephalus was treated with a third ventriculostomy. Courtesy of Drs. Abilash Haridas and Tadanori Tomita.