- Most commonly assoc w/hereditary hemorrhagic telangiectasia (HHT; formerly Osler-Weber-Rendu) within lungs
- Also congenital, assoc w/cirrhosis→ hepato-pulm syndrome
- Or w/prior surgery/trauma
- Findings associated w/advanced liver dz if related to cirrhosis (i.e. jaundice, icterus, ascites, edema, gynecomastia, muscle wasting)
- Telangiectasis on nasal mucosa, lips, tongue and GI tract can cause bleeding in those areas