Neuropathological findings in possible normal pressure hydro-cephalus: A post-mortem study of 29 cases with lifelines.

There are very few detailed post-mortem studies on idiopathic normal-pressure hydrocephalus (iNPH) and there is a lack of proper neuropathological criteria for iNPH. This study aims to update the knowledge on the neuropathology of iNPH and to develop the neuropathological diagnostic criteria of iNPH. We evaluated the clinical lifelines and post-mortem findings of 29 patients with possible NPH.