Mediastinal shift

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Classification according to ICD-10
J98.5 Mediastinal Diseases, Not Elsewhere Classified
- Mediastinal Dislocation
ICD-10 online (WHO version 2019)

A mediastinal shift or a mediastinal displacement describes the displacement of the mediastinum from the midline of the thorax to the left or right. The term is used in X-ray diagnostics .

The cause is either a decrease in the volume of the thoracic half on the side to which the mediastinum is displaced, or an increase in volume on the other side.

(ap) X-ray image of a tension pneumothorax of the left side (right in the picture) with mediastinal shift to the right.
Mediastinal shift to the right in case of subtotal atelectasis of the right lung in case of bronchial carcinoma (arrow). The arrowheads point to the trachea, which has been shifted to the right.
Mediastinal shift to the right with very large pleural effusion on the left.

Causes for a reduction in volume in one half of the thorax are, for example

  • Atelectasis of part or all of the lung on the side e.g. B. by a tumor
  • Condition after resection of part or all of the lung on the side
  • Scarred shrinkage, for example after tuberculosis or trauma
  • Defects in the lungs

Causes for an increase in volume in one half of the thorax are, for example

literature

  • Nestor L. Müller, Richard S. Fraser, Neil C. Colman, Peter D. Paré: Radiologic Diagnosis of Diseases of the Chest . WB Saunders, Philadelphia 2001, ISBN 0-7216-8808-X .
  • Otto-Henning Wegener: Whole-body computed tomography . 2nd edition Blackwell Wissenschaft, Berlin 1992, ISBN 3-89412-105-X .
  • Joachim Frey : Diseases of the respiratory organs. In: Ludwig Heilmeyer (ed.): Textbook of internal medicine. Springer-Verlag, Berlin / Göttingen / Heidelberg 1955; 2nd edition ibid. 1961, pp. 599-746, here: pp. 742 f. ( Mediastinal displacements ).