Role of Multislice Computed Tomography and Local Contrast in the Diagnosis and Characterization of Choanal AtresiaReport as inadecuate

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International Journal of PediatricsVolume 2011 2011, Article ID 280763, 6 pages

Clinical Study

Department of Otolaryngology, King Abdulaziz University, P.O. Box 35135, Jeddah 21488, Saudi Arabia

Radiology Department, International Medical Centre, P.O. Box 2172, Jeddah 21451, Saudi Arabia

Received 5 January 2011; Accepted 9 March 2011

Academic Editor: Joseph M. Croffie

Copyright © 2011 Khaled Al-Noury and Alsaid Lotfy. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. To illustrate the role of multislice computed tomography and local contrast instillation in the diagnosis and characterization of choanal atresia. To review the common associated radiological findings. Methods. We analyzed 9 pediatric patients 5 males and 4 females with suspected choanal atresia by multislice computed tomography. We recorded the type of atresia plate and other congenital malformations of the skull. Results. Multislice computed tomography with local contrast installed delineated the posterior choanae. Three patients had unilateral mixed membranous and bony atresia. Three patients had unilateral pure bony atresia. Only 1 of 7 patients have bilateral bony atresia. It also showed other congenital anomalies in the head region. One patient is with an ear abnormality. One patient had congenital nasal pyriform aperture stenosis. One of these patients had several congenital abnormalities, including cardiac and renal deformities and a hypoplastic lateral semicircular canal. Of the 6 patients diagnosed to have choanal atresia, 1 patient had esophageal atresia and a tracheoesophageal fistula. The remaining patients had no other CHARGE syndrome lesions. Conclusions. Local Contrast medium with the application of the low-dose technique helps to delineate the cause of the nasal obstruction avoiding a high radiation dose to the child.

Author: Khaled Al-Noury and Alsaid Lotfy



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