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Related Experiment Videos

[Sternalis muscle in breast surgery].

C Trastour1, J-C Machiavello, C Chapellier

  • 1Département de Chirurgie Oncologique, Centre Antoine-Lacassagne, France. ctrastour@hotmail.com

Annales De Chirurgie
|June 3, 2006
PubMed
Summary

The sternalis muscle, an anatomic variant in 5-8% of people, can be mistaken for a breast mass on mammograms. Advanced imaging like CT and MRI can aid diagnosis when this variant is encountered.

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Area of Science:

  • Anatomy
  • Radiology
  • Surgical Pathology

Background:

  • The sternalis muscle is a common anatomic variant, present in 5-8% of the population, running superficial to the pectoralis major.
  • Despite its prevalence in cadaveric studies, it is often unfamiliar to clinicians, potentially causing diagnostic confusion.

Observation:

  • Two cases of the sternalis muscle were identified during mastectomy procedures.
  • This muscle variant can be mistaken for a breast mass on mammography, leading to misdiagnosis.

Findings:

  • Computed tomography (CT) and magnetic resonance imaging (MRI) are valuable tools for differentiating the sternalis muscle from other pathologies.
  • Accurate identification is crucial to avoid unnecessary interventions or patient anxiety.

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Implications:

  • Increased awareness among physicians regarding the sternalis muscle can improve diagnostic accuracy in breast imaging and surgery.
  • Understanding this anatomic variant is important for radiologists and surgeons to prevent misinterpretation of mammographic findings.