title: Immunofluorescence, necrobiosis lipoidica, and blood vessels. Fluorescent lights in the tunnels.
mesh_terms: D003176:Complement C3 / Q000032:analysis; D005455:Fluorescent Antibody Technique; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D009335:Necrobiosis Lipoidica / Q000188:drug therapy / Q000276:immunology*; D012867:Skin / Q000276:immunology*
chemical_list: D003176:Complement C3; D007070:Immunoglobulin A; D007075:Immunoglobulin M