Fig. 2From: Cerebral ventriculomegaly in myotonic dystrophy type 1: normal pressure hydrocephalus-like appearances on magnetic resonance imagingClassification for Sylvian fissure dilation. Visual rating scales for Sylvian fissure dilation coronal FLAIR images: 1, narrowed or normal; 2, mildly dilated (abnormal dilation of Sylvian fissure); and 3, severely dilated (abnormal dilation of Sylvian fissure with widely-detachment of frontal and temporal opercula from the insular cortex)Back to article page