Question

which of the following pathological findings is not an associated finding with arnold - chiari syndrome? stenosis of the cerebral aqueduct myelomeningocele enlarged occipital fossa tonsillar herniation

Explanation:

Arnold - Chiari syndrome is associated with tonsillar herniation (where cerebellar tonsils herniate through the foramen magnum), stenosis of the cerebral aqueduct which can lead to hydrocephalus, and an enlarged occipital fossa. Myelomeningocele is a neural - tube defect and is not directly an associated finding of Arnold - Chiari syndrome.

Answer:

myelomeningocele