Bilateral reversed palmaris longus muscle: a rare anatomical variation

G. Salgado; M. Cantin; O. Inzunza; A. Munoz; J. Saez; M. Macuer

Vol 71, No 1 (2012)

Case report

Submitted: 2012-06-27

Published online: 2012-04-19

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Bilateral reversed palmaris longus muscle: a rare anatomical variation

G. Salgado, M. Cantin, O. Inzunza, A. Munoz, J. Saez, M. Macuer

Folia Morphol 2012;71(1):52-55.

Vol 71, No 1 (2012)

CASE REPORTS

Submitted: 2012-06-27

Published online: 2012-04-19

Abstract

We report a case of bilateral reversed palmaris longus muscle (PLM). The muscle was tendinous in its upper portion and muscular in its lower portion in both arms. This rare variation has been mentioned only once in the literature as a surgical finding. According to the literature, a reversed PLM may cause a compartment syndrome in the wrist area, carpal tunnel, and Guyon’s syndrome. The described variation is also useful to the hand surgeon as a tendon graft, a tendon for transfer, or as an anatomical landmark for operations at this area.