title: [Localized amyloidosis of the cavum].
abstract: BACKGROUND
  Amyloidosis is characterized by extracellular deposits of proteins.
  
  
  METHODS
  A 66 year-old patient presented with a pseudo-tumoral amyloidosis of the cavum. Clinical and biological examinations confirmed the localized aspect of the disease and immunohistochemical exploration identified a type AL amyloidosis.
  
  
  CONCLUSIONS
  The disease may be diffuse involving many organs and leading to various clinical manifestations. It can also be localized and take on a pseudo-tumoral aspect. Localised amyloidosis is a rare lesion of the upper aero-digestive tract, predominating in the larynx. Nasopharyngeal involvement is exceptional.
authors.affiliation: Service d'anatomie et cytologie pathologique, Hôpital Huriez CHRU, Lille. a-wacrenier@chru-lille.fr
authors.forename: A
authors.initials: A
authors.lastname: Wacrenier
authors.forename: P
authors.initials: P
authors.lastname: Fayoux
authors.forename: D
authors.initials: D
authors.lastname: Augusto
authors.forename: S
authors.initials: S
authors.lastname: Aubert
authors.forename: B
authors.initials: B
authors.lastname: Gosselin
authors.forename: X
authors.initials: X
authors.lastname: Leroy
mesh_terms: D000368:Aged; D000686:Amyloidosis / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D009960:Oropharynx / Q000473:pathology; D010608:Pharyngeal Diseases / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D013997:Time Factors