CT DETECTION OF RETROPERITONEAL GAS ASSOCIATED WITH GAS IN INTERVERTEBRAL DISKS

  • 1 January 1984
    • journal article
    • research article
    • Vol. 8  (2) , 232-236
Abstract
Cases (3) are presented with computed tomographic evidence of gas in retroperitoneal soft tissues in association with the so-called vacuum phenomenon (Knutsson sign) in lumbar discs. The explanations of Knutsson sign are reviewed and an explanation of how extradiscal gas can occur in association with it is presented.