Chiari I malformation-MRI
There is evidence of tonsillar herniation below the level of foramen magnum with obliterated cisterna magna, which is consistent with Chiari I malformation. There is minimal cranial migration of the odontoid process and minimal increase in the altanto-axial distance. Odontoid process shows mild posterior inclination mildly impinging on the thecal sac.
Reported via Teleradiology
Chiari I malformation-MRI Reviewed by Sumer Sethi on Saturday, June 13, 2009 Rating: