Foramen of Morgagni

Last revised by Dr Henry Knipe on 16 Aug 2018

The foramina of Morgagni, also known as the sternocostal triangles, are small defects in the posterior aspect of the anterior thoracic wall between the sternal and costal attachments of the diaphragm. The internal thoracic vessels descend through these foramina to become the superior epigastric vessels.

Related pathology

It is through these triangles, that Morgagni herniae occur.

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Cases and figures

  • Figure 1: undersurface of the diaphragm
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