Positive metacarpal sign
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Short 4th metacarpal
Positive metacarpal sign : If a line drawn along the heads of the 4th and 5th metacarpals will intersect the head of the 3rd metacarpal (shortened 4th metacarpal). This finding can be a normal variant or seen in a variety of conditions such as Turner syndrome.
- Slater Stanley. “An Evaluation of the Metacarpal Sign (Short Fourth Metacarpal).” Pediatrics 46, no. 3 (September 1, 1970): 468-471. [Link].