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What is All of the following conditions are associated with clubbing except: March 2012 and explain in detail?
Ans: B i.e. Chronic bronchitis Causes of clubbing Respiratory causes of digital clubbing includes bronchogenic carcinoma, asbestosis (especially with mesothelioma), suppurative lung disease (empyema, Bronchiectasis, cystic fibrosis), fibrosing alvelolitis etc. Finger clubbing is not a feature of COPD and should trigger fuher investigation for lung cancer, Bronchiectasis or fibrosis