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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...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Ubiquity Press
2016
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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. |
format | Online Article Text |
id | pubmed-5854277 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Ubiquity Press |
record_format | MEDLINE/PubMed |
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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