Stating that Chiari Malformation, popularly known as cerebellar prolapse, occurs congenitally, Op. Dr. Selçuk Gözcü: “Chiari Malformation is the prolapse of the cerebellum and brainstem into the spinal canal. Since the posterior pit of the skull remains small at birth, the cerebellum and brainstem are displaced within the spinal canal. For this reason, problems with the patient’s balance may occur. In such patients, symptoms such as headache, gait disturbance, neck pain in the arms, muscle weakness, and speech disorder are observed. Patients also lose social communication. This syndrome has many risks, from paralysis to death. If left untreated, the risk of paralysis may be high as the disease progresses with age. The balance center is affected because the cerebellum compresses the spinal cord and causes fluid accumulation inside it. There is a blockage in the path of the cerebrospinal fluid in the brain. “It can only be treated surgically,” he said.