RID28496

http://radlex.org/RID/RID28496

http://radlex.org/RID/RID1249

Pathology.—Bronchiectasis is irreversible localized or diffuse bronchial dilatation, usually resulting from chronic infection, proximal airway obstruction, or congenital bronchial abnormality (26). (See also traction bronchiectasis.) Radiographs and CT scans.—Morphologic criteria on thin-section CT scans include bronchial dilatation with respect to the accompanying pulmonary artery (signet ring sign), lack of tapering of bronchi, and identification of bronchi within 1 cm of the pleural surface (27) (Fig 11). Bronchiectasis may be classified as cylindric, varicose, or cystic, depending on the appearance of the affected bronchi. It is often accompanied by bronchial wall thickening, mucoid impaction, and small-airways abnormalities (27–29). (See also signet ring sign.) [Fleischner Society]

RID28496

http://radlex.org/RID/RID35683

http://radlex.org/RID/RID35542

http://radlex.org/RID/RID35651

bronchiectasis

RID:RID28496

RID28496

Fleischner Society

http://radlex.org/RID/RID46028