Immunohistochemical evidence of infiltration by T-cells (CD3+), B-cells (chB6+) and macrophages (Kul01+). Immunophenotyping identified the majority of infiltrating lymphocytes as being CD3-positive T-cells (A). They show a characteristic multifocal distribution pattern. With similar spatial characteristics, chB6-positive B-cells comprise the second largest fraction of infiltrating cells (B). Compared to the lymphocytes, the density of Kul01-positive macrophages appears much lower (C). The arrows point to immunopositive cells. All sections were prepared from the same region of the sciatic nerve. The orientation of the nerve fibres (NF) is indicated. Scale bar = 35 μm.