呼吸细支气管间质性肺病（respiratorybronchiolitis－interstitiallungdiseas，RB－ILD）sjx影像园－共享放射医学资源病理生理学：RB－ILD是与吸烟有关的疾病，其特征是呼吸细支气管和细支气管周围肺泡的炎症sjx影像园－共享放射医学资源（主要为巨噬细胞），有时有非特异性和脱屑性间质性肺炎的成分或与之重叠。sjx影像园－共享放射医学资源CT表现：典型的RB－ILD表现为符合富巨噬细胞肺泡炎的广泛小叶中心性微结节和斑片状磨玻sjx影像园－共享放射医学资源璃影，有或无纤维化，常伴有支气管管壁增厚和轻度小叶中心型肺气肿。空气潴留区反映了细支气管为其组成成分。sjx影像园－共享放射医学资源
Pathology.―RB-ILDisasmoking-relateddiseasecharacterizedbyinflammation（predominantlybymacrophages）oftherespiratorybronchiolesandperibronchiolaralveoli,sometimeswithelementsoforoverlapwithnonspecificanddesquamativeinterstitialpneumonias.sjx影像园－共享放射医学资源
CTscans.―RB-ILDtypicallymanifestsasextensivecentrilobularmicronodulesandpatchyground-glassopacitycorrespondingtomacrophage-richalveolitis（Fig1）,withorwithoutfinefibrosis.Itisoftenaccompaniedbybronchialwallthickeningandminorcentrilobularemphysema.Areasofairtrappingreflectabronchioliticcomponent.sjx影像园－共享放射医学资源
Figure1:TransverseCTscanshowscentrilobularmicronodulesandpatchyground-glassopacitytypicalofrespiratorybronchiolitisCinterstitiallungdisease.sjx影像园－共享放射医学资源
（本文编译参考自FleischnerSociety:GlossaryofTermsforThoracicImaging--Hanselletal.Radiology2008;246:697-722.仅供学习交流之用,转载请注明源于影像园http://www.xctmr.com/）sjx影像园－共享放射医学资源
