Surgery All of the following are true about Arnold-Chiari malformation except: A Type I Chiari malformation is displacement of cerebellar tonsil into cervical canal B Type II Chiari malformation is associated with syringomyelia of cervical canal C Type II Chiari malformation is characterized by elongation of the 4th ventricle and kinking of the brainstem, with displacement of the inferior vermis, pons, and medulla into the cervical canal D Type I Chiari malformation is not associated with hydrocephalus 💡 Explanation All of the following are true about Arnold-Chiari malformation except: ✓ Correct Answer: B. Type II Chiari malformation is associated with syringomyelia of cervical canal