Question

Chiari II malformation commonly results in aqueductal stenosis, which causes hydrocephalus. What type of hydrocephalus is commonly associated with Chiari II malformation?

1) Communicating hydrocephalus
2) Non-communicating hydrocephalus
3) Obstructive hydrocephalus
4) Normal pressure hydrocephalus

Answer 1

Chiari II malformation commonly results in obstructive hydrocephalus.

Step-by-step explanation:

Chiari II malformation commonly results in obstructive hydrocephalus. Hydrocephalus is a condition characterized by the buildup of cerebrospinal fluid (CSF) in the ventricles of the brain. In Chiari II malformation, the cerebellum and brainstem extend into the spinal canal, causing a blockage of the CSF flow. This obstruction leads to aqueductal stenosis and hydrocephalus. Since the CSF is unable to flow properly, it is considered as an obstructive type of hydrocephalus.