Chiari malformation type 1 and spontaneous intracranial hypotension (SIH) can both cause headache and cerebellar tonsillar ectopia. Misdiagnosis of the SIH as Chiari 1 can lead to deadly complications.
Faculty member, Lydia Gregg, MA, CMI, FAMI, illustrated this topic. The figure was recently selected for the cover the Journal of Neurosurgery.
Hydrocephalus © 2020 JHU by Lydia Gregg