PECTORO-EPICONDYLARIS: A RARE EXTENSION OF THE PECTORALIS MAJOR MUSCLE. Pectoro-epicondilaris: Una rara extensión del músculo pectoral mayor

Autores/as

  • Sushma R Kotian Department of Anatomy, Kasturba Medical College, Manipal University, Manipal
  • Kumar M R Bhat Department of Anatomy, Kasturba Medical College, Manipal University, Manipal

DOI:

https://doi.org/10.31051/1852.8023.v5.n1.14049

Palabras clave:

Pectoralis major, pectoro-epicondylaris, medial intermuscular septum, medial epicondyle, pectoral mayor, pectoro-epconcilaris, septo intermuscular medial, epicóndilo medial

Resumen

El músculo pectoral mayor es propenso a varias incongruencias morfológicas. Diferentes deslizamien-tos musculares son comunes entre ellos. Sin embargo, durante la disección rutinaria de un cadáver masculino de 55 años por estudiantes de pregrado, se encontró una variante rara de la extensión tendinosa del músculo pectoral mayor. Surgía de la lámina profunda del tendón muscular bilaminar cerca de su inserción en el húmero. En su camino a unirse al tabique intermuscular medial del brazo y finalmente al epicóndilo medial del húmero, cruzó todas las estructuras en la parte delantera del brazo de lateral a medial. Considerando la extensión tendinosa de forma proximal, no se observó formación muscular separada. Esta variante de deslizamiento puede ser nombrada como músculo pectoral epicondilario. El conocimiento de esta variación particular puede ser de especial interés para los radiólogos y médicos en procedimien-tos tales como transformación de músculo, trasplante de tendón y uso en los colgajos miocutáneos durante cirugías reconstructivas.

 

The pectoralis major muscle is prone to various morphological incongruities. Variant muscular slips are common among them. However during routine dissection for undergraduate students in a 55-year-old male cadaver, a rare variation of the tendinous extension of the pectoralis major muscle was found. It was arising from the deep lamina of the muscular bilaminar tendon close to its insertion to the humerus.  On its way to be attached to the medial intermuscular septum of the arm and finally to the medial epicondyle of the humerus, it crossed all the structures in the front of the arm from lateral to medial. Tracing this tendinous extension slip proximally, no separate muscular extension was observed. this variant slip may be named as pectoro-epicondylaris muscle. The know-ledge of this particular variation could be of special interest to radiologists and clinicians in procedures such as muscle transformation, tendon transplantation and use of myo-cutaneous flaps during reconstructive surgeries.

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Citas

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Publicado

2016-03-28

Cómo citar

Kotian, S. R., & Bhat, K. M. R. (2016). PECTORO-EPICONDYLARIS: A RARE EXTENSION OF THE PECTORALIS MAJOR MUSCLE. Pectoro-epicondilaris: Una rara extensión del músculo pectoral mayor. Revista Argentina De Anatomía Clínica, 5(1), 29–32. https://doi.org/10.31051/1852.8023.v5.n1.14049

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