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Juvenile Nasopharyngeal Angiofibroma: Magnetic Resonance Imaging Findings

PURPOSE: Juvenile nasopharyngeal angiofibroma (JNA) is a rare tumor that exhibits a predictable spreading pattern. Radiologist’s prior knowledge on the tumor’s characteristics aids in establishing a diagnosis. We aimed to report the characteristic Magnetic Resonance Imaging (MRI) findings and the sp...

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Autores principales: Alimli, Ayse Gul, Ucar, Murat, Oztunali, Cigdem, Akkan, Koray, Boyunaga, Oznur, Damar, Cagrı, Derinkuyu, Betül, Tokgöz, Nil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Ubiquity Press 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5854277/
https://www.ncbi.nlm.nih.gov/pubmed/30038985
http://dx.doi.org/10.5334/jbr-btr.1090
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author Alimli, Ayse Gul
Ucar, Murat
Oztunali, Cigdem
Akkan, Koray
Boyunaga, Oznur
Damar, Cagrı
Derinkuyu, Betül
Tokgöz, Nil
author_facet Alimli, Ayse Gul
Ucar, Murat
Oztunali, Cigdem
Akkan, Koray
Boyunaga, Oznur
Damar, Cagrı
Derinkuyu, Betül
Tokgöz, Nil
author_sort Alimli, Ayse Gul
collection PubMed
description PURPOSE: Juvenile nasopharyngeal angiofibroma (JNA) is a rare tumor that exhibits a predictable spreading pattern. Radiologist’s prior knowledge on the tumor’s characteristics aids in establishing a diagnosis. We aimed to report the characteristic Magnetic Resonance Imaging (MRI) findings and the spread patterns of JNA. MATERIALS AND METHODS: We retrospectively evaluated the MRI findings and extension pathways of 6 cases of JNA. RESULTS: The patients’ age ranged from 8 to 16 years and all patients were male. The tumors were classified according to the Onerci system. Tumors were largely isointense to muscle on T1-weighted images and hyperintense on T2-weighted images. All lesions had internal signal-void regions and all exhibited intense enhancement after IV contrast injection. Diffusion restriction was not an associated feature. ADC values for these tumors were high. The evaluation of the available MR angiography studies of three patients showed the blood supply to the tumor to be mainly from the internal maxillary branch of the external carotid artery. In all patients, the diagnosis was based on MR images and a surgical excision was planned. CONCLUSION: The diagnosis can be established based on the characteristic imaging findings and the clinical history without performing a biopsy.
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spelling pubmed-58542772018-07-23 Juvenile Nasopharyngeal Angiofibroma: Magnetic Resonance Imaging Findings Alimli, Ayse Gul Ucar, Murat Oztunali, Cigdem Akkan, Koray Boyunaga, Oznur Damar, Cagrı Derinkuyu, Betül Tokgöz, Nil J Belg Soc Radiol Original Article PURPOSE: Juvenile nasopharyngeal angiofibroma (JNA) is a rare tumor that exhibits a predictable spreading pattern. Radiologist’s prior knowledge on the tumor’s characteristics aids in establishing a diagnosis. We aimed to report the characteristic Magnetic Resonance Imaging (MRI) findings and the spread patterns of JNA. MATERIALS AND METHODS: We retrospectively evaluated the MRI findings and extension pathways of 6 cases of JNA. RESULTS: The patients’ age ranged from 8 to 16 years and all patients were male. The tumors were classified according to the Onerci system. Tumors were largely isointense to muscle on T1-weighted images and hyperintense on T2-weighted images. All lesions had internal signal-void regions and all exhibited intense enhancement after IV contrast injection. Diffusion restriction was not an associated feature. ADC values for these tumors were high. The evaluation of the available MR angiography studies of three patients showed the blood supply to the tumor to be mainly from the internal maxillary branch of the external carotid artery. In all patients, the diagnosis was based on MR images and a surgical excision was planned. CONCLUSION: The diagnosis can be established based on the characteristic imaging findings and the clinical history without performing a biopsy. Ubiquity Press 2016-06-01 /pmc/articles/PMC5854277/ /pubmed/30038985 http://dx.doi.org/10.5334/jbr-btr.1090 Text en Copyright: © 2016 The Author(s) http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC-BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See http://creativecommons.org/licenses/by/4.0/.
spellingShingle Original Article
Alimli, Ayse Gul
Ucar, Murat
Oztunali, Cigdem
Akkan, Koray
Boyunaga, Oznur
Damar, Cagrı
Derinkuyu, Betül
Tokgöz, Nil
Juvenile Nasopharyngeal Angiofibroma: Magnetic Resonance Imaging Findings
title Juvenile Nasopharyngeal Angiofibroma: Magnetic Resonance Imaging Findings
title_full Juvenile Nasopharyngeal Angiofibroma: Magnetic Resonance Imaging Findings
title_fullStr Juvenile Nasopharyngeal Angiofibroma: Magnetic Resonance Imaging Findings
title_full_unstemmed Juvenile Nasopharyngeal Angiofibroma: Magnetic Resonance Imaging Findings
title_short Juvenile Nasopharyngeal Angiofibroma: Magnetic Resonance Imaging Findings
title_sort juvenile nasopharyngeal angiofibroma: magnetic resonance imaging findings
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5854277/
https://www.ncbi.nlm.nih.gov/pubmed/30038985
http://dx.doi.org/10.5334/jbr-btr.1090
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