CLUBBING MNEMONICS!!! SIMPLIFIED...

causes of clubbing
mnemonic"CLUBBING":

C yanotic heart disease
L ung disease (hypoxia, lung cancer, bronchiectasis, cystic fibrosis, IPF)
U lcerative colitis/Crohn's disease
B iliary cirrhosis
B irth defect (harmless)
I nfective endocarditis
N eoplasm (esp. Hodgkins, mesothelioma)
G I malabsorption