title: Erythema nodosum leprosum.
mesh_terms: D001183:Arthus Reaction / Q000150:complications; D003176:Complement C3; D004893:Erythema Nodosum / Q000276:immunology*; D006801:Humans; D007074:Immunoglobulin G
chemical_list: D003176:Complement C3; D007074:Immunoglobulin G