W. C. POLLOCK, M.D.
Roentgenological study of pneumothoraces, whether artificially induced or spontaneous, frequently reveals mediastinal displacement. This displacement may be of the superior anterior mediastinum, of the inferior or of the entire mediastinum. The displacement associated with artificial pneumothorax therapy or in spontaneous cases is due to a disturbance of the normal physiological intrathoracic equilibrium. The degree of displacement is not in all cases proportionate to the change in intrathoracic equilibrium because of factors that will be discussed later.
Mediastinal displacement is observed in cases of pulmonary tuberculosis unassociated with pneumothorax and in cases where pneumothorax no longer exists; but this type of
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POLLOCK WC. Mediastinal Displacement in Pneumothorax(Mediastinal Displacement in Pneumothorax*†)(Mediastinal Displacement in Pneumothorax*†). Ann Intern Med. 1931;5:486–499. doi: 10.7326/0003-4819-5-4-486
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Published: Ann Intern Med. 1931;5(4):486-499.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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