Anomalous insertion of the pectoralis minor tendon at the greater tuberosity
We present a case of ectopic insertion of the whole tendon of the pectoralis minor muscle associated with impingement syndrome. Based on this case, we performed a review of the literature focused on the association between this ectopic tendon insertion and anterior shoulder pain.
KeywordsPectoralis minor muscle Ultrasonography Shoulder
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest to disclose.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
- 2.Schwarz GM, Hirtler L (2019) Ectopic tendons of the pectoralis minor muscle as cause for shoulder pain and motion inhibition—explaining clinically important variabilities through phylogenesis. PLoS One 14(6):e0218715. https://doi.org/10.1371/journal.pone.0218715 CrossRefPubMedPubMedCentralGoogle Scholar
- 3.Le Double A (1987) Traité des variations du système musculaire de l’homme et de leur signification au point de vue de l’anthropologie zoologique. Schleicher frères, ParisGoogle Scholar