Info on chiari malformation type 1 my 13 year old son has been diagnosed?

Common Safe: Type i involves the extension of the cerebellar tonsils (the lower part of the cerebellum) into the foramen magnum, without involving the brain stem. Type i may not cause symptoms, & is the most common form of cm & is usually first noticed in adolescence or adulthood, often by accident during an examination for another condition. See http://www.Ninds.Nih.Gov/disorders/chiari/detail_chiari.Htm.

Read this monograph: This is a brief monograph that explains the various types of Chiari for the lay patient. Brief, informative, and FREE. http://surgeonwriter.com/hydrolog/ Look particularly for mention of the symptoms that lead to your son's diagnosis. Surgery may or may not be indicated. If syrinx is present, surgery is much more likely to be offered. Good luck.