[CT imaging features of bronchiolitis].
Bronchiolitis may be encountered in numerous clinical circumstances. Previous history of smoking, infections, toxic exposure, immunodeficiency, chronic inflammatory disorders or transplantation must be known. CT findings consist in centrilobular micronodules with sharp or ill borders of various density and/or a mosaic attenuation with expiratory air trapping. Tree-in-bud pattern suggest an inflammatory or infectious bronchiolitis. The associated presence of bronchiectasis and bronchiolectasis must be considered. Imaging-pathologic correlations will be presented for inflammatory bronchiolitis (infectious bronchiolitis, hypersensitivity pneumonitis, respiratory bronchiolitis, follicular bronchiolitis, diffuse panbronchiolitis) and fibrosing bronchiolitis (constrictive bronchiolitis, post-infectious bronchiolitis, toxic fume exposure, transplant-related bronchiolitis).
Beigelman-Aubry
C
C
Service de Radiologie Générale, Hôpital de la Pitié Salpêtrière, 83 boulevard de l'Hôpital, 75651 Paris cedex 13, France. catherine.beigelman@psl.aphp.fr
Touitou
D
D
Mahjoub
R
R
Stivalet
A
A
Fernandez Perea
G
G
Grenier
P
P
Capron
F
F
D000208:Acute Disease; D000328:Adult; D016026:Bone Marrow Transplantation; D001987:Bronchiectasis / Q000150:complications / Q000000981:diagnostic imaging; D001988:Bronchiolitis / Q000150:complications / Q000000981:diagnostic imaging*; D001989:Bronchiolitis Obliterans / Q000000981:diagnostic imaging; D001990:Bronchiolitis, Viral / Q000000981:diagnostic imaging; D018549:Cryptogenic Organizing Pneumonia / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D015658:HIV Infections / Q000150:complications / Q000000981:diagnostic imaging; D006801:Humans; D008224:Lymphoma, Follicular / Q000150:complications; D013902:Radiography, Thoracic; D014057:Tomography, X-Ray Computed / Q000379:methods*