Which of the following is not a feature of normal pressure hydrocephalus: September 2011
Affects elderly usually
Ventriculomegaly on imaging studies
Measurement of CSF pressure may be normal
Lesion is blockage of CSF pathways from the lateral to fouh ventricle
Ans. D: Lesion is blockage of CSF pathways from the lateral to fouh ventricle Although one-off measurement of CSF pressure may be normal the syndrome is thought to arise from impaired CSF absorption