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Case Reports
. 2023 Oct-Dec;22(4):557-559.
doi: 10.4103/aam.aam_35_22.

Anomalous retrogressive palmaris longus

Suyashi Sharma  1 , Ravi Shankar Sharma  2 , Sonali Adole  1 , Shilpi Gupta Dixit  1 , Surajit Ghatak  1
Affiliations
Case Reports

Anomalous retrogressive palmaris longus

Suyashi Sharma et al. Ann Afr Med. 2023 Oct-Dec.

Abstract
in English, French

An interesting case of unusual unilateral variant of palmaris longus (PL) tendon of forearm was noticed by us. We found two bellies of PL as well as their different insertions. These observations will help in understanding morphological variations of this muscle and its clinical implications. PL is a fusiform muscle in the superficial flexor group of muscles of forearm. It originates from medial epicondyle of humerus by common flexor tendon. We found PL having one origin, i.e., from medial epicondyle from common tendinous origin of flexor muscles and then it divided to form two bellies having two long tendons distally. Understanding of presence or absence or anomalies of PL is not only important for medical professionals but also for evolutionary biologists. Awareness of anatomy and variations of flexor tendons is important for health care practitioners for the correct diagnosis and management of pain, disease, and trauma of forearm and hand.

Résumé Nous avons remarqué un cas intéressant de variante unilatérale inhabituelle du tendon du long palmaire (PL) de l'avant-bras. Nous avons retrouvé deux ventres de PL ainsi que leurs différentes insertions. Ces observations aideront à comprendre les variations morphologiques de ce muscle et ses implications cliniques. Le PL est un muscle fusiforme du groupe des muscles fléchisseurs superficiels de l'avant-bras. Il provient de l'épicondyle médial de l'humérus par le tendon fléchisseur commun. Nous avons trouvé que le PL avait une origine, c'est-à-dire de l'épicondyle médial provenant de l'origine tendineuse commune des muscles fléchisseurs, puis il s'est divisé pour former deux ventres ayant deux longs tendons distalement. Comprendre la présence, l'absence ou les anomalies de PL est non seulement important pour les professionnels de la santé mais également pour les biologistes évolutionnistes. La connaissance de l'anatomie et des variations des tendons fléchisseurs est importante pour les praticiens de la santé afin de diagnostiquer et de gérer correctement la douleur, la maladie et les traumatismes de l'avant-bras et de la main. Mots-clés: Palmaris longus, greffe tendineuse, variation, contracture ischémique de Volkmann.

Keywords: Palmaris longus; tendon graft; variation; volkmann's ischemic contracture.

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Conflict of interest statement

None

Figures

Figure 1
Figure 1
Image showing dissected view of palmaris longus. (*origin of palmaris longus, [a and b] Tendons of palmaris longus after its belly got divided,[1] Flexor carpi radialis,[2] Flexor carpi ulnaris)
See this image and copyright information in PMC

References

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