Something to watch: It means that the cerebellum tonsils are descending but have not gone far enough to meet the criteria for a chiari malformation.
Answered 2/25/2018
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Incidental on MRI: Chiari type i is an incidental finding on an MRI that shows low lying tonsils of the cerebellum. A line can be drawn on the film and the measurement in millimeters of how low the tonsils lie. If just a few mm, it is considered borderline. Most cases are just incidental and are not clinically relevant.
Answered 6/10/2014
5.6k views
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