Chordoma - clivus

Case contributed by A.Prof Frank Gaillard
MRI

A high T2 signal mass arises from the posterior surface of the clivus and indents the pons. This has been likened to a thumb and the term "thumb sign" has even been proposed. It is said to be relatively specific for a chordoma in the correct clinical and imaging setting.

Case Discussion

This patient went on to have the mass resected which confirmed the diagnosis of chordoma

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Case information

rID: 4308
Published: 7th Aug 2008
Last edited: 29th Apr 2018
Inclusion in quiz mode: Included

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