title: The many faces of systemic mastocytosis.
abstract: OBJECTIVE
  This short review article will augment the reader's knowledge of mast cell physiology and will offer an overview of current information on the pathophysiology, heterogeneity, and treatment of human mastocystosis.
  
  
  METHODS
  Articles published since 1980, textbooks, information from computerized databases, references identified from bibliographies of relevant articles, and books published in the last 10 years.
  
  
  CONCLUSIONS
  Mastocytosis is a complex disease with a multitude of clinical presentations, often misdiagnosed, which can embrace characteristics of other diseases and generate a chameleon-like picture. Mast cells possess many important physiologic functions in the human body, but as a consequence of poorly understood events, they can also start a cascade of pathologic reactions. Although a great deal is known about mechanisms involved in physiologic and pathologic processes of mast cells, many areas are waiting to be explored in this millennium.
authors.affiliation: East Carolina University Brody School of Medicine, Section of Allergy, Asthma, and Immunology, Greenville, NC 27858, USA. Loralspas@cs.com
authors.forename: L
authors.initials: L
authors.lastname: Ispas
authors.forename: R A
authors.initials: RA
authors.lastname: Henriksen
authors.forename: W J
authors.initials: WJ
authors.lastname: Metzger
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008415:Mastocytosis / Q000175:diagnosis / Q000209:etiology / Q000473:pathology