title: Isolated laryngeal plasmacytosis.
abstract: BACKGROUND
  Laryngeal plasmacytosis (LP) is a rare benign lesion of mature polyclonal plasma cells, which should be differentiated from extramedullary plasmacytoma.
  
  
  METHODS
  Isolated laryngeal plasmacytosis was discovered in a 59-year-old woman, free of symptoms other than chronic hoarseness.
  
  
  CONCLUSIONS
  Histological presentation, treatment modalities and prognosis are discussed.
  
  
  CONCLUSIONS
  Laryngeal plasmacytosis is a rare benign lesion that must be considered in case of submucosal polyclonal plasma cell infiltrate.
authors.affiliation: Service d'anatomie pathologique, faculté de médecine Paris Descartes Paris-5, hôpital européen Georges-Pompidou, 20-40, rue Leblanc, 75015 Paris, France.
authors.forename: S
authors.initials: S
authors.lastname: El Naderi
authors.forename: A
authors.initials: A
authors.lastname: Primov-Fever
authors.forename: D
authors.initials: D
authors.lastname: Brasnu
authors.forename: C
authors.initials: C
authors.lastname: Badoual
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D006685:Hoarseness / Q000209:etiology; D006801:Humans; D007145:Immunoglobulin kappa-Chains / Q000032:analysis; D007146:Immunoglobulin lambda-Chains / Q000032:analysis; D007822:Laryngeal Neoplasms / Q000175:diagnosis* / Q000473:pathology; D007830:Larynx / Q000473:pathology; D008856:Microscopy, Fluorescence; D008875:Middle Aged; D010950:Plasma Cells / Q000473:pathology; D010954:Plasmacytoma / Q000175:diagnosis* / Q000473:pathology; D011379:Prognosis; D053668:Syndecan-1 / Q000032:analysis; D014057:Tomography, X-Ray Computed
chemical_list: D007145:Immunoglobulin kappa-Chains; D007146:Immunoglobulin lambda-Chains; C508241:SDC1 protein, human; D053668:Syndecan-1
keywords: Larynx; Plasmacytoma