[Asthma, nasal polyposis and aspirin intolerance--a triad to remember].

Despite more than a half-century of recognition, the triad characterised by severe asthma, nasal polyposis and acetylsalicylic acid intolerance known as aspirin-induced asthma or Widal's triad remains markedly underdiagnosed and mistreated. A number of reasons may contribute to this situation with the lack of awareness of its clinical characteristics, pathophysiology and even sometimes of its actual existence the main ones. This review article aims to alert physicians to this entity and its particularities in an attempt to improve healthcare. A correct diagnosis is the first step in the effective treatment of a disease.