Posterior mediastinum

The posterior mediastinum is an artificial space of the mediastinum divided from the remainder of the extra-pleural intrathoracic cavity by arbitrary lines. It forms part of the inferior mediastinum.

Gross anatomy

Relations

It is continuous with the retropharyngeal space via the posterior part of the superior mediastinum.

Contents
Boundaries
  • anteriorly: bifurcation of trachea, pulmonary vessels, pericardium and posterior fibres of the diaphragm
  • posteriorly: T4-T12 thoracic vertebrae
  • laterally: mediastinal pleura

Related Pathology

See main article: differential for a posterior mediastinal mass.

Thoracic anatomy
Share article

Article information

rID: 30563
System: Chest
Section: Anatomy
Synonyms or Alternate Spellings:
  • Postvascular space

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Figure 1: mediastinal anatomy: Gray's anatomy illustration
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.