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Anatomic variations associated with antrochoanal polyps.

M Gursoy1, N Erdogan2, Y K Cetinoglu2

  • 1Department of Radiology, Faculty of Medicine, Izmir Democracy University, Izmir, Turkey.

Nigerian Journal of Clinical Practice
|May 16, 2019
PubMed
Summary
This summary is machine-generated.

Antrochoanal polyps (ACPs) are linked to sinonasal variations like accessory ostia and septal deviation (SD). SD may contribute to ACP development by altering nasal airflow, with polyps often extending into the nasopharynx.

Keywords:
Antrochoanal polypcomputed tomographyparanasal sinussinonasal variation

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Area of Science:

  • Otolaryngology
  • Rhinosinusology
  • Medical Imaging

Background:

  • Antrochoanal polyps (ACPs) are common sinonasal tumors, but their exact cause remains unknown.
  • Sinonasal cavity variations are frequently observed in patients with ACPs.

Purpose of the Study:

  • To investigate the relationship between ACPs and various sinonasal cavity variations.
  • To explore the potential role of sinonasal anatomic variations in ACP development and extension.

Main Methods:

  • Retrospective analysis of 144 patients with ACPs and 160 controls using paranasal sinus CT scans.
  • Evaluation of retention cysts, sinus wall sclerosis, nasal septal deviation (SD), concha bullosa, and accessory maxillary ostia.
  • Assessment of ACP posterior extension (middle meatus, nasopharynx, oropharynx) and correlation with SD direction.

Main Results:

  • Higher prevalence of retention cysts, sinus wall sclerosis, SD, and accessory maxillary ostia in the ACP group.
  • Significant negative correlation between the side of SD and the side of ACP.
  • ACP extension observed in the middle meatus (32.6%), nasopharynx (56.3%), and oropharynx (11.1%).

Conclusions:

  • Accessory maxillary ostium may accelerate the transformation of retention cysts into ACPs.
  • Nasal septal deviation likely contributes to ACP development by altering nasal airflow dynamics.
  • Understanding these associations can inform diagnosis and management of ACPs.