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An air bronchogram is defined as a pattern of air-filled bronchi on a background of airless lung. [1] Consolidations. In pulmonary consolidations and infiltrates ...
Air bronchograms is defined as a pattern of air-filled bronchi on a background of airless lung, and may be seen in both benign and malignant nodules, but certain patterns thereof may help in risk stratification.
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The air bronchogram sign, where branching radiolucent columns of air corresponding to bronchi is seen, usually indicates air-space (alveolar) disease, as from blood, pus, mucus, cells, protein surrounding the air bronchograms. This is seen in Respiratory distress syndrome [9]
It is characterized by symmetric fine granular opacities, air bronchograms. It does not have pleural effusions because the lung dysfunction is not due to excess fluid (as can occur with a non-compressive Cesaerean section), but decreased surfactant , causing the lungs to be inelastic and crumpled.
C sign; Canga's bead sign; Cannonball metastases; Cardiothoracic ratio; Carman meniscus sign; Celery stalking; Cervicothoracic sign; Chang sign; Cheerio sign
The nodules may also have a segmental or lobar distribution. Air alveolograms and air bronchograms can also be seen which indicate fluid in the alveoli with air in the terminal bronchioles indicating disease is alveolar. [1] These findings appear soon after the onset of symptoms and change rapidly thereafter.
Peribronchial cuffing, also referred to as peribronchial thickening or bronchial wall thickening, is a radiologic sign which occurs when excess fluid or mucus buildup in the small airway passages of the lung causes localized patches of atelectasis (lung collapse). [1]