CXR 胸部x光判讀 bronchiectasis

bronchial dilatation, bronchial wall thickening

Tram tracks

severe and diffuse bronchiectasis

DD: LAM, langerhans cell histiocytosis

Cylindrical bronchiectasis: failure of the involved airways to taper progressively in their distal course.Varicoid bronchiectasis: irregular dilation, narrowing, and outpouching of the airways
Saccular bronchiectasis: focal or cystic distortion of the distal airways