ARTICLE: PDF OnlyComputed Tomography of the Normal Pulmonary HilumWebb, W. Richard; Glazer, Gary; Gamsu, GordonAuthor Information From the Department of Radiology, University of California, San Francisco, San Francisco, California. Address correspondence and reprint requests to Dr. Webb at Department of Radiology, M-380, University of California, San Francisco, San Francisco, California 94143. Journal of Computer Assisted Tomography: August 1981 - Volume 5 - Issue 4 - p 476-484 Buy Abstract The detection of pulmonary hilar abnormalities using computed tomography (CT) requires a detailed understanding of cross-sectional hilar anatomy. Many lobar and segmental bronchi are identifiable on CT scans and form the basis for interpreting hilar CT. Large pulmonary artery and venous branches within the hilum produce relatively constant hilar contours and were identified using dynamic CT scans following the bolus injection of contrast medium. At several levels on the right and at one level on the left, the posterior hilum is devoid of vessels. © Lippincott-Raven Publishers.