ABSTRACT
Objective ToexploretheCTcharacteristicsoftracheobronchialtuberculosis(TBTB)withdifferentpathologicaltypes. Methods CTdataof80patientsdiagnosedasTBTBbybronchoscopywereanalyzedretrospectively.Results CTcharacteristicsofTBTBwere follows:(1)Directsignsweredetectedin127cases.Therewere47cases(37.0%)withbronchialwallthickening,57cases(44.9%) withbronchiostenosisand23cases(18.1%)withbronchialocclusion.ForactiveTBTB,therewereonly2caseswithbronchialwall thickeningand1casewithbronchiostenosisin9casesintypeⅠ,40cases(31.5%)withbronchialwallthickeningandbronchiostenosisintypeⅡ, 41cases(32.3%)withallthreedirectsignsintypeⅢ.AmongstableTBTB,22cases (17.3%)withbronchialwallthickeningand bronchiostenosisintypeⅣ;TherewerefewcasesintypeⅤ,butallwithbronchialocclusion.(2)Indirectsign:54cases(45.4%)with bronchialdisseminated,13cases(10.9%)withdestroyedlung,25cases(21.0%)withcavities,27cases(22.7%)withmediastinallymphnodes enlargementamongthe119cases.BronchialdisseminatedlesionsinactiveTBTBweresignificantlymorethandestroyedlungandcavitylesions (P<0.01).Conclusion DifferentpathologicaltypesofTBTBhavedifferentCTcharacteristics.ActiveTBTBischaracterizedbydirectsignsand oftenaccompaniedwithindirectsignssuchasbronchialdissemination.