Evaluation of the Pulmonary Hilum

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Abstract
In 84 patients with suspected intrathoracic neoplasms, the accuracy of conventional radiography, 55.degree. posterior oblique tomography, and contrast-enhanced dynamic incremental computed tomography (CT) in evaluation of the pulmonary hilum were compared. Dynamic incremental CT was better than conventional radiography or oblique tomography in hilar evaluation. Significant information was detected in extrahilar and extramediastinal locations by CT in 21% of patients. This study, unlike earlier reports, indicates a role for CT in hilar evaluation.