Lung collapse
Signs
Trachea- displaced towards the collapsed lung
Chest expansion- reduced on the affected side with flattening of the chest wall on the same side
Tactile fremitus- reduced on affected side
Percussion- dull over the collapsed lung
Breath sound- reduced +/- bronchial breath sound above the area of collapse
Cuauses of lung collapse
Intraluminal- mucus (post-operative, asthma, cystic fibrosis)
Mural- lung cancer
Extramural- peribronchial adenopathy
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