Tonsillar ectopia measurement (diagram)

Case contributed by A.Prof Frank Gaillard

Tonsillar ectopia measurement: the vertical distance from the tip of the cerebellar tonsils to a line drawn between and anterior and posterior margins of the foramen magnum. Normal is < 5 mm. 

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Case information

rID: 10769
Published: 19th Sep 2010
Last edited: 30th Mar 2018
Inclusion in quiz mode: Excluded

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