It comprises of a downward displacement of the cerebellar tonsils through the foramen magnum (the Opening at the base of the skull), sometimes causing non-communicating hydrocephalus as a result of obstruction of cerebrospinal fluid (CSF) outflow. The cerebrospinal fluid outflow is caused by phase difference in outflow and influx of blood in the vasculature of the brain. It can bring about headaches, fatigue, muscle weakness, difficulty swallowing, dizziness, nausea, tinnitus, impaired coordination, and in several times paralysis. Chiari malformations are structural defects in the cerebellum. That's the part of the brain that controls balance.
Dizziness, muscle weakness, numbness, vision problems, headaches, problems with balance and coordination
Chiari contortions influence females more frequently than guys