Nasal cavity, paranasal sinuses, nasopharynx

Inflammatory lesions

Nasal polyps

Topic Completed: 1 November 2004

Minor changes: 2 March 2020

Copyright: 2004-2021,, Inc.

PubMed Search: Nasal polyps[TI] nasal cavity

Nat Pernick, M.D.
Page views in 2020: 8,053
Page views in 2021 to date: 10,128
Cite this page: Pernick N. Nasal polyps. website. Accessed November 29th, 2021.
Definition / general
  • Common; not neoplastic but may fill entire nasal cavity or extend into cranial cavity or orbit
  • In children, must rule out cystic fibrosis
  • Often recur due to persistence of causative factors
Microscopic (histologic) description
  • Edematous lamina propria with variable inflammatory infiltrate including eosinophils
  • Subtypes include angiectatic (angiomatous), cystic, edematous, fibrous, glandular
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