title: Pigmented lesions of the tongue in heroin addicts--fixed drug eruption.
abstract: Pigmentation of the tongue is an uncommon finding. We describe a case in which it was due to a fixed drug eruption following the inhalation of heroin pyrolysate and methaqualone vapours.
mesh_terms: D000328:Adult; D003932:Heroin / Q000009:adverse effects*; D006556:Heroin Dependence / Q000150:complications*; D006801:Humans; D008297:Male; D008702:Methaqualone / Q000009:adverse effects; D010859:Pigmentation Disorders / Q000139:chemically induced* / Q000473:pathology; D014059:Tongue / Q000473:pathology; D014060:Tongue Diseases / Q000139:chemically induced* / Q000473:pathology
chemical_list: D003932:Heroin; D008702:Methaqualone