Vol. 8 No. 1 (2004)
Case Report

Complete Unilateral Absence of Trapezius Muscle

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  • Mohammed Allouh,
  • Adel Mohamed,
  • Azedean Mhanni
DOI: https://doi.org/10.26443/mjm.v8i1.375

Published 2020-12-01

Keywords

  • trapezius,
  • congenital,
  • nuchal ligament,
  • Poland's syndrome,
  • prune belly syndrome

How to Cite

1.
Allouh M, Mohamed A, Mhanni A. Complete Unilateral Absence of Trapezius Muscle. McGill J Med [Internet]. 2020 Dec. 1 [cited 2025 Oct. 6];8(1). Available from: https://mjm.mcgill.ca/article/view/375
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Abstract

Congenital partial absence of the trapezius muscle is a relatively common variation. Several cases of partial absence of the trapezius muscle have been reported. However, complete unilateral agenesis of this muscle has not been previously reported. In our case, a complete cadaver dissection of an 87-year-caucasian male was performed at the Department of Anatomy, College of Medicine in Saskatoon, Canada. The entire body dissection revealed a complete agenesis of the left trapezius muscle fibers. No other significant congenital anomalies were found.

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