Case Report

Sphenochoanal polyp: Radiological diagnosis

M. W. Pak, J. Kew
South African Journal of Radiology | Vol 3, No 2 | a1538 | DOI: https://doi.org/10.4102/sajr.v3i2.1538 | © 2018 W. M. Pak, J. Kew | This work is licensed under CC Attribution 4.0
Submitted: 07 August 2018 | Published: 31 May 1998

About the author(s)

M. W. Pak, Division of Otorhinolaryngology, Department of Surgery, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong
J. Kew, Department of Diagnostic Radiology and Organ Imaging, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong

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Abstract

A sphenochoanal polyp is seen as an isolated soft tissue density mass that arises from the sphenoid  sinus and extends to the choana on computed tomographic scans. Distinction from its more common counterpart, antrochoanal polyp which arises from the maxillary sinus, is essential prior to surgery. A case is presented to illustrate that CT scan of paranasal sinus plays an important role in the identification of the sinus of origin.

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