Torsion of the upper lobe in pneumothorax

Y. M. Berkmen, D. Yankelevitz, S. D. Davis, P. Zanzonico

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


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.

Original languageEnglish
Pages (from-to)447-449
Number of pages3
Issue number2
StatePublished - 1989
Externally publishedYes


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