title: Pigmented contact dermatitis vs lichen planus pigmentosus.
mesh_terms: D003358:Cosmetics / Q000009:adverse effects; D003877:Dermatitis, Contact / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008010:Lichen Planus / Q000139:chemically induced / Q000175:diagnosis*; D010859:Pigmentation Disorders / Q000139:chemically induced / Q000175:diagnosis*; D009626:Terminology as Topic
chemical_list: D003358:Cosmetics