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False Computed Tomography Findings in Bilateral Choanal Atresia

Introduction Choanal atresia (CA) is a challenging surgical problem defined as a failure in the development of communication between the nasal cavity and nasopharynx. Objective The objective of this study is to describe computed tomography (CT) findings in cases with bilateral choanal atresia. Metho...

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Autores principales: Elsheikh, Ezzeddin, El-Anwar, Mohammad Waheed
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Thieme Publicações Ltda 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4835329/
https://www.ncbi.nlm.nih.gov/pubmed/27096022
http://dx.doi.org/10.1055/s-0035-1570314
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author Elsheikh, Ezzeddin
El-Anwar, Mohammad Waheed
author_facet Elsheikh, Ezzeddin
El-Anwar, Mohammad Waheed
author_sort Elsheikh, Ezzeddin
collection PubMed
description Introduction Choanal atresia (CA) is a challenging surgical problem defined as a failure in the development of communication between the nasal cavity and nasopharynx. Objective The objective of this study is to describe computed tomography (CT) findings in cases with bilateral choanal atresia. Methods The study involved performing axial and coronal non-contrast CT scanning with 2–3 mm sections on14 neonates that had bilateral CA. We used fiberoptic nasal endoscopy to confirm the diagnosis. We evaluated coronal CT to study the skull base area in such neonates. Results This study included 14 neonates with bilateral CA; with mean age of 7 ± 3.5 days. Mixed atretic plates were found in 12 (85.7%) cases while two (14.3%) had pure bony atresia. Isolated CA was detected in 9 cases (64.3%) and 5 (35.7%) cases had associated anomalies. Coronal CT showed soft tissue density in the nasal cavity that appeared to extend through an apparent defect in the nasal roof (cribriform plate), falsely diagnosed by radiologists as associated encephalocele. At the time of surgical repair, all patients showed thick tenacious mucous secretions in both nasal cavities and revealed no encephalocele. Nasal roof remained intact in all cases. Conclusion The thick secretion of bilateral CA could give a false encephalocele appearance on the CT. It is highly recommended to perform proper suction of the nasal cavity of suspected CA cases just before CT scanning.
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spelling pubmed-48353292016-04-19 False Computed Tomography Findings in Bilateral Choanal Atresia Elsheikh, Ezzeddin El-Anwar, Mohammad Waheed Int Arch Otorhinolaryngol Article Introduction Choanal atresia (CA) is a challenging surgical problem defined as a failure in the development of communication between the nasal cavity and nasopharynx. Objective The objective of this study is to describe computed tomography (CT) findings in cases with bilateral choanal atresia. Methods The study involved performing axial and coronal non-contrast CT scanning with 2–3 mm sections on14 neonates that had bilateral CA. We used fiberoptic nasal endoscopy to confirm the diagnosis. We evaluated coronal CT to study the skull base area in such neonates. Results This study included 14 neonates with bilateral CA; with mean age of 7 ± 3.5 days. Mixed atretic plates were found in 12 (85.7%) cases while two (14.3%) had pure bony atresia. Isolated CA was detected in 9 cases (64.3%) and 5 (35.7%) cases had associated anomalies. Coronal CT showed soft tissue density in the nasal cavity that appeared to extend through an apparent defect in the nasal roof (cribriform plate), falsely diagnosed by radiologists as associated encephalocele. At the time of surgical repair, all patients showed thick tenacious mucous secretions in both nasal cavities and revealed no encephalocele. Nasal roof remained intact in all cases. Conclusion The thick secretion of bilateral CA could give a false encephalocele appearance on the CT. It is highly recommended to perform proper suction of the nasal cavity of suspected CA cases just before CT scanning. Thieme Publicações Ltda 2015-12-15 2016-04 /pmc/articles/PMC4835329/ /pubmed/27096022 http://dx.doi.org/10.1055/s-0035-1570314 Text en © Thieme Medical Publishers
spellingShingle Article
Elsheikh, Ezzeddin
El-Anwar, Mohammad Waheed
False Computed Tomography Findings in Bilateral Choanal Atresia
title False Computed Tomography Findings in Bilateral Choanal Atresia
title_full False Computed Tomography Findings in Bilateral Choanal Atresia
title_fullStr False Computed Tomography Findings in Bilateral Choanal Atresia
title_full_unstemmed False Computed Tomography Findings in Bilateral Choanal Atresia
title_short False Computed Tomography Findings in Bilateral Choanal Atresia
title_sort false computed tomography findings in bilateral choanal atresia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4835329/
https://www.ncbi.nlm.nih.gov/pubmed/27096022
http://dx.doi.org/10.1055/s-0035-1570314
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