Most headaches aren't caused by a serious illness, but some could be a sign of a life-threatening condition.
Tests and diagnosis
MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.
Aug. 21, 2013
- Chiari malformation fact sheet. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/chiari/detail_chiari.htm. Accessed May 8, 2013.
- Chiari malformation. American Association of Neurological Surgeons. http://www.aans.org/Patient%20Information/Conditions%20and%20Treatments/Chiari%20Malformation.aspx. Accessed June 5, 2013.
- Chiari malformations. http://www.uptodate.com/home. Accessed May 8, 2013.
- Ropper AH, et al. Adams & Victor's Principles of Neurology. 9th ed. New York, N.Y.: The McGraw-Hill Companies; 2009. http://www.accessmedicine.com/content.aspx?aID=3637206&searchStr=arnold-chiari+malformation#3637206. Accessed June 5, 2013.
- Sekula RF, et al. The pathogenesis of Chiari I malformation and syringomyelia. Neurological Research. 2011;33:232.
- Riggin EA. Decision Support System. Mayo Clinic, Rochester, Minn. May 23, 2013.