Saturday, June 13, 2009

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

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