What are the symptoms of arnold-chiari malformation?

Headaches/dizziness: Most common symptom is headache. Other symptoms can include dizziness, unsteady gait, double vision, and passing out episodes. The headaches can be worse if there is straining.

Chiary II.: Chiari ii malformation (cm-ii), also known as arnold-chiari malformation, is a fetal condition characterized by downward displacement of the cerebellar vermis and tonsils, a brainstem malformation with beaked midbrain, and a spinal myelomeningocele (open spina bifida). Symptoms: lower extremity paresis, hydrocephalus, bowel/bladder control impairement, inability to indipendently ambulate.