Vascular endothelial growth factor (VEGF) and angiopoietin-2 (Ang-2) are major mediators of angiogenesis and are induced by tissue inflammation and hypoxia. While elevated serum VEGF levels have been reported in inflammatory lung diseases, especially with hemoptysis, there was no study to evaluate the Ang-2 levels in lung inflammatory diseases according to the presence of hemoptysis, inflammatory biomarker and hypoxia.

Inclusion Criteria:

• patients visited Samsung Medical Center for the treatment of benign inflammatory disease such as bronchiectasis, aspergilloma, pneumonia and post-tuberculosis destroyed lung

Exclusion Criteria:

• patients with tumorous condition including lung cancer, vasculitis and the lung disease associated with collagen vascular disease on the point of enrollment

patients visited Samsung Medical Center for the treatment of benign inflammatory disease such as bronchiectasis, aspergilloma, peumonia and post-tuberculosis destroyed lung