Revision 5 for 'Posterior mediastinum'

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Posterior mediastinum

The Posterior Mediastinum is part of the inferior mediastinum.  Above it is the superior mediastinum.  In front is the anterior and middle mediastinum which form the other parts of the inferior mediastinum.  It is continuous with the Retropharyngeal space via the posterior part of the superior mediastinum.

The contents include:

  • Descending aorta
  • Azygos vein
  • Hemiazygos veins
  • Esophagus
  • Thoracic lymph nodes
    • preaortic nodes
    • para-aortic nodes
    • parasternal nodes
    • tracheobronchial lymph nodes
  • Thoracic duct

The boundaries are:

  • anteriorly: bifurcation of trachea, pulmonary vessels, pericardium and posterior fibers of the diaphragm
  • posteriorly: thoracic vertebrae 4 to 12
  • laterally:  mediastinal pleura

Related Pathology

  • neoplasm
    • Pleural
    • Lung
    • Neurogenic
    • teratoma
    • lymphoma
    • sarcoma
  • lymphadenopathy
  • aortic aneurysm
  • extramedullary hematopoiesis

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