How to differentiate between brain atrophy, hydrocephalus and normal pressure hydrocephalus.
1-In case of brain atrophy, there will be ventricular dilatation with prominent cortical sulci.
2-In case of hydrocephalus, there will be ventricular dilatation with cortical sulci effacement.
3-While in case of normal pressure hydrocephalus, there is ventricular dilatation with normal cortical sulci.
4-Clinical classic triad for normal pressure hydrocephalus is recent onset of gait ataxia, dementia and urinary incontinence with remote history of infection or hemorrhage is present in 50% of cases.
5-Similar to communicating hydrocephalus in
-Enlarged ventricles with normal sulci.
-Per ventricular edema may be seen on CT or MRI.
-Increased flow void in aqueduct.
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