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Macrophage activation syndrome

Disease definition

A rare hemophagocytic syndrome characterized by excessive activation and proliferation of macrophages and T cells occurring in the context of a variety of diseases, including infections, neoplasms, rheumatic disorders, and leading to sudden onset of persistent fever, lymphadenopathy, and hepatosplenomegaly. Complications include profound depression of one or more blood cell lines with coagulopathy and pancytopenia, and impaired liver and renal function. Bone marrow examination reveals numerous well differentiated macrophages actively phagocytosing hematopoietic elements.

ORPHA:158061

Classification level: Disorder
  • Synonym(s): -
  • Prevalence: Unknown
  • Inheritance: -
  • Age of onset: Childhood, Adolescent, Adult
  • ICD-10: D69.1
  • OMIM: -
  • UMLS: C1096155
  • MeSH: D055501
  • GARD: 12124
  • MedDRA: 10053867

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The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.