Torsion of the upper lobe in pneumothorax |
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| Authors: | Berkmen YM; Yankelevitz D; Davis SD; Zanzonico P |
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| Institution: | Department of Radiology, New York Hospital-Cornell Medical Center, NY 10021. |
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| Abstract: | A rounded density is occasionally seen hanging down from the hilus in the presence of a large pneumothorax. To find an explanation for this appearance, the authors obtained a right-sided bronchogram on a baboon, after which they induced pneumothorax on the same side. This experiment demonstrated that the rounded density is formed by a twisted and atelectatic upper lobe. |
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