Louis; Ludwig

描述

The sternal angle (angle of Louis) is the anterior angle formed by the junction of the manubrium and the body of the sternum which varies around 162 degrees in males.

The sternal angle is a palpable clinical landmark under the skin that marks a number of other features:

  • Boundary between the superior and inferior portion of the mediastinum
  • Passage of the thoracic duct from right to left behind esophagus Aortic Arch
  • Tracheal Bifurcation
  • End of the azygos system into SVC
  • Ligamentum arteriosum
  • Loop of left recurrent laryngeal nerve around aortic arch
  • Aortic arch starts and ends

影像

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