Collaborative Hypertext of Radiology
Terry Thomas sign
a gap between the scaphoid and the lunate bones suggesting a
rupture of the scapho-lunate ligament
seen on x-ray, CT and MRI of the wrist
Terry Thomas was a British actor whose career was most active in the sixties.
the reference is to the prominant gap between his front teeth
many radiologists have taken to calling it the "David Letterman" sign for similar reasons
Jon T. Lee, MD - 6 February 1995
Last updated: 1 October 2013
Copyright © 2013, Charles E. Kahn, Jr.