Differential Diagnosis of Clubbing Includes
1)Respiratory Disease
Lung abscess, empyema, bronchiectasis
2)Cardiovascular Disease
Congenital Cyanotic Heart Disease (Tetralogy of Fallot etc), Infective Endocarditis
3)GastroIntestinal Disease
Liver Cirrhosis, Inflammatory Bowel Disease, Primary biliary cirrhosis
