Steinberg thumb sign

Stein·berg thumb sign

(stīn'bĕrg),
in Marfan syndrome, when the thumb is held across the palm of the same hand, it projects well beyond the ulnar surface of the hand.

Stein·berg thumb sign

(stīn'bĕrg thŭm sīn)
In Marfan syndrome, when the thumb is held across the palm of the same hand, it projects well beyond the ulnar surface of the hand.

Steinberg,

I.,
Steinberg thumb sign - in Marfan syndrome, when the thumb is held across the palm of the same hand it projects well beyond the ulnar surface of the hand.
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