title: [Pancytopenia in disseminated tuberculosis: Think of macrophage activation syndrome].
abstract: BACKGROUND
  The macrophage activation syndrome (MAS), also known as haemophagacytosis, is a non-specific clinical syndrome, which includes, among other things general debility, fever and hepatospleneomegaly. The most frequent pathological abnormalities are pancytopenia, hypertryglyceraemia, and hyperferrititinaemia. These clinical and biological criteria, which determine the severity of MAS, must be associated with a histological criterion - haemophagocytosis (with histiocytosis), which is usually medullary but can more rarely be splenic, hepatic or ganglionic. MAS can be primary or secondary. In the latter case, it is frequently associated with an infection of which tuberculosis is the most common.
  
  
  METHODS
  We describe the case of a young immunocompetent patient who had disseminated tuberculosis complicated by MAS.
  
  
  CONCLUSIONS
  It is important to be aware of MAS, because its occurrence is associated with a poor prognosis and its optimal treatment, which requires a multidisciplinary approach, has not been fully defined. The optimum strategy in relation to specific aetiologies remains to be clarified.
authors.affiliation: Service de pneumologie, CHU de Rennes, Rennes, France. helene.leho@yahoo.fr
authors.forename: H
authors.initials: H
authors.lastname: Le Hô
authors.forename: N
authors.initials: N
authors.lastname: Barbarot
authors.forename: B
authors.initials: B
authors.lastname: Desrues
mesh_terms: D006801:Humans; D055501:Macrophage Activation Syndrome / Q000150:complications* / Q000175:diagnosis*; D008297:Male; D010198:Pancytopenia / Q000209:etiology*; D014376:Tuberculosis / Q000150:complications*; D055815:Young Adult