Ang-2 expression is strongly associated with myeloid cell infiltration. Tissue sections derived from human inflammatory diseases were separated into myeloid dominated (A-C, abscess with granulation tissue) and lymphocyte dominated specimen (D-F, vasculitis/peripheral nerve). Specimen with high numbers of CD68⁺ macrophages (B) and low numbers of CD3⁺ T cells (C) show strong vascular staining for Ang-2 (A). In contrast, specimens with high numbers of infiltrating T cells (F) and low numbers of macrophages (E) were negative for Ang-2 (D). Scale bar represents 100 μm.