One of the following condition Is not associated with clubbing
Primary biliary cirrhosis
Chronic bronchitis
Ciyptogenic fibrosing alvcolitis
Central bronchiectasis
Chronic bronchitis does not cause clubbing Pulmonary causes of clubbing: primary and metastatic lung cancer bronchiectasis asbestosis sarcoidosis lung abscess cystic fibrosis tuberculosis mesothelioma other causes include inflammatory bowel disease,infective endocarditis,cyanotic congenital hea disease ,hepatic cirrhosis etc
Respiratory system