The 'hydrocephalus ex vacuo' seen in advanced Alzheimer disease is a result of:
Show answer and explanation
Correct answer: Compensatory ventricular enlargement due to brain atrophy
In neurodegenerative conditions, the loss of brain parenchyma (atrophy) results in a secondary, compensatory enlargement of the ventricular system. This is termed hydrocephalus ex vacuo to distinguish it from high-pressure hydrocephalus.
Keep practicing
More Neurodegenerative Disorders questions
- Which protein accumulates in the spinal cord of nearly 95% of patients with Amyotrophic Lateral Sclerosis (ALS)?
- Progressive Supranuclear Palsy (PSP) is a tauopathy that classically presents with which clinical sign?
- What is the primary mechanism of neurotoxicity in Prion diseases?
- In Huntington disease, 'anticipation' refers to which genetic phenomenon?
- Which neurodegenerative condition is specifically associated with the loss of dopaminergic neurons in the locus coeruleus and substantia ni…
- What is the characteristic histological inclusion found in Pick disease?