Mediastinum (ITMIG classification)

Dr Henry Knipe et al.

The International Thymic Malignancy Interest Group (ITMIG) classification of mediastinal compartments was developed to reflect the division of the mediastinum based on cross-sectional imaging. 

Classification

The ITMIG classification divides the mediastinum into three compartments: prevascular, visceral and paravertebral 1,2.

Prevascular compartment
Boundaries
Contents
Visceral compartment
Boundaries
  • superior: thoracic inlet
  • inferior diaphragm:
  • anterior: posterior boundary of the prevascular compartment
  • posterior: a vertical line connecting a point on each thoracic vertebral body 1 cm posterior to its anterior margin (visceral-paravertebral compartment boundary line)
Contents
Paravertebral compartment
Boundaries
  • superior: thoracic inlet
  • inferior: diaphragm
  • anterior: posterior boundaries of the visceral compartment
  • posterolateral: vertical line against the posterior margin of the chest wall at the lateral margin of the thoracic spine
Contents

Thoracic anatomy
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Article Information

rID: 52066
System: Chest
Tags: refs, cases
Synonyms or Alternate Spellings:
  • International Thymic Malignancy Interest Group (ITMIG) classification of mediastinal compartments
  • ITMIG classification of mediastinal compartments

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