aetiology of non-communicating hydrocephalus
Last reviewed 06/2023
Classification: Congenital:
- atresia, stenosis, forking, or gliosis of the aqueduct of Sylvius
- atresia of foramina of Magendie or Luschka - the Dandy-Walker syndrome
- obstruction of 4th ventricular outflow - Arnold Chiari malformation
- aneurysm of vein of Galen
Acquired:
- aqueduct stenosis - due to adhesions following infection or haemorrhage
- supratentorial masses causing tentorial herniation
- intraventricular haematoma
- tumours:
- intraventricular - meningioma, colloid cysts, ependymona
- parenchymal - pineal region, posterior fossa
- abscesses and granuloma
- arachnoid cysts
- cerebellar haemorrhage