Ear
Inflammatory / infectious / autoimmune / systemic disorders
Inflammatory aural / otic polyp

Author: Nat Pernick, M.D. (see Authors page)

Revised: 8 February 2018, last major update October 2013

Copyright: (c) 2002-2018, PathologyOutlines.com, Inc.

PubMed Search: Inflammatory aural polyp

Cite this page: Pernick, N. Inflammatory aural / otic polyp. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/earinflammatoryotic.html. Accessed October 16th, 2018.
Definition / general
  • Inflammatory polypoid proliferation of middle ear mucosa secondary to chronic otitis media
  • May perforate tympanic membrane and appear to originate from external auditory canal; with time, may destroy ossicles
  • More common in children but occurs in all ages
  • Often associated with extensive disease of mastoid air cell system (in rural India, Am J Otolaryngol 2003;24:155) or cholesteatoma of middle ear (Acta Otorrinolaringol Esp 2003;54:161)
Treatment
  • Excision
  • Possibly mastoid exploration
Gross description
  • Polypoid, soft / rubbery, pink / tan / red lesion
Microscopic (histologic) description
  • Squamous or ciliated columnar epithelium containing lymphocytes, histiocytes, plasma cells, eosinophils
  • Mott cells (plasma cells with large eosinophilic immunoglobulin) and granulation type tissue; usually mast cells (J Laryngol Otol 1995;109:491), variable neutrophils, multinucleated giant cells, cholesterol granulomas and tympanosclerosis
Differential diagnosis
  • Plasmacytoma: monoclonal light chains