Types III and IV of Chiari Malformation: Rare and Severe
Chiari malformation Types III and IV are extremely uncommon and pose significant risks. Type III represents the most severe form, characterized by the abnormal protrusion of the brain stem and a portion of the cerebellum through an opening at the base of the skull. Symptoms typically manifest during infancy and can be both debilitating and life-threatening. On the other hand, Type IV involves an underdeveloped or incomplete cerebellum, despite its correct positioning.
Symptoms of Chiari Malformation
Chiari malformation can have varying symptoms depending on the type and severity of the condition. One of the most common signs is experiencing headaches after straining, coughing, or sneezing. In infants, symptoms may include difficulty swallowing, excessive drooling, gagging, a weak cry, arm weakness, breathing problems, or developmental delays. Additionally, individuals with Chiari malformation may also experience neck pain, dizziness, balance problems, tinnitus, and difficulty swallowing.