title: Plaque-type multinucleate cell angiohistiocytoma.
abstract: BACKGROUND
  Multinucleate cell angiohistiocytoma (MCAH) is a rare cutaneous disorder that usually presents as papules or nodules.
  
  
  OBJECTIVE
  This article reports a case of MCAH that appeared clinically as a large cutaneous plaque.
  
  
  RESULTS
  A 74-year-old woman presented with a large painless, dusky red, indurated plaque measuring 12 x 6 cm on the trunk that was found on histopathologic examination to be a MCAH. Based on a literature review, this is the first reported case of MCAH presenting as a plaque rather than a papule or nodule.
  
  
  CONCLUSIONS
  Multinucleate cell angiohistiocytoma may manifest clinically as a solitary cutaneous plaque.
authors.affiliation: Division of Dermatology, Vancouver Hospital & Health Sciences Centre, University of British Columbia, Vancouver, British Columbia, Canada.
authors.forename: A A
authors.initials: AA
authors.lastname: Issa
authors.forename: H
authors.initials: H
authors.lastname: Lui
authors.forename: J
authors.initials: J
authors.lastname: Shapiro
authors.forename: M J
authors.initials: MJ
authors.lastname: Trotter
mesh_terms: D000368:Aged; D005260:Female; D018219:Histiocytoma, Benign Fibrous / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D012878:Skin Neoplasms / Q000473:pathology*