Sinonasal polyposis

Changed by Yuranga Weerakkody, 3 Sep 2015

Updates to Article Attributes

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Sinonasal polyposis refers to a specific pattern of chronic sinusitis.

Chronic inflammatory sinusitis is commonly classified into five patterns: 

  • ostiomeatal complex (OMC)
  • infundibular
  • sphenoethmoidal recess
  • sinonasal polyposis
  • sporadic patterns

This classification usually determines the type of surgery to perform.

Clinical presentation

Clinical symptoms can include:

  • progressive nasal stuffiness
  • rhinorrhea
  • facial pain
  • headache
  • anosmia

Radiographic features

CT

Features include:

  • extensive mucosal polyps occupying and obliterating the nasal cavity and the paranasal sinuses
  • associated benign bone remodelling or erosion
  • concurrent fungal infectionsinus infection which may be common
  • truncation of middle turbinate 4
  • enlargement of infundibula
  • bony attenuation of the ethmoid trabeculae and nasal septum
  • occasionally sparing of the inferior nasal meatus (see case 2)
  • opacified ethmoid sinuses with convex lateral walls and air-fluid levels
  • -<li>concurrent<a href="/articles/fungal-infection"> fungal infection</a> which may be common</li>
  • +<li>concurrent<a title="Fungal sinus infection" href="/articles/fungal-sinusitis"> fungal sinus infection</a> which may be common</li>

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