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Keywords:

  • hand;
  • atavistic;
  • variation;
  • adductor pollicis

Abstract

Variations of the adductor pollicis muscle of the hand are seemingly rare. We describe an unusual finding of this muscle made during the routine dissection of a cadaveric hand as part of our medical school's gross anatomy course. We believe this case report represents persistence of a portion of the contrahentes digitorum in a human hand. As muscle variations may compress the median nerve while in the carpal tunnel, the clinician should be aware of such a variation. Clin. Anat. 18:606–608, 2005. © 2005 Wiley-Liss, Inc.