Steinberg thumb sign

Steinberg thumb sign definition - medical

Stein·berg thumb sign (stīnˈbərg)

noun
An indication of Marfan's syndrome in which the thumb projects well beyond the ulnar surface of the hand when it is held across the palm of the same hand.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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