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Imaging Characteristics of Malignant Sinonasal Tumors
Malignancies of the nasal cavity and paranasal sinuses account for 1% of all malignancies and 3% of malignancies of the upper aerodigestive tract. In the sinonasal tract, nearly half of all malignancies arise in the nasal cavity, whereas most of the remaining malignancies arise in the maxillary or e...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5742805/ https://www.ncbi.nlm.nih.gov/pubmed/29211048 http://dx.doi.org/10.3390/jcm6120116 |
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author | Kawaguchi, Masaya Kato, Hiroki Tomita, Hiroyuki Mizuta, Keisuke Aoki, Mitsuhiro Hara, Akira Matsuo, Masayuki |
author_facet | Kawaguchi, Masaya Kato, Hiroki Tomita, Hiroyuki Mizuta, Keisuke Aoki, Mitsuhiro Hara, Akira Matsuo, Masayuki |
author_sort | Kawaguchi, Masaya |
collection | PubMed |
description | Malignancies of the nasal cavity and paranasal sinuses account for 1% of all malignancies and 3% of malignancies of the upper aerodigestive tract. In the sinonasal tract, nearly half of all malignancies arise in the nasal cavity, whereas most of the remaining malignancies arise in the maxillary or ethmoid sinus. Squamous cell carcinoma is the most common histological subtype of malignant tumors occurring in this area, followed by other epithelial carcinomas, lymphomas, and malignant soft tissue tumors. Although many of these tumors present with nonspecific symptoms, each tumor exhibits characteristic imaging features. Although complex anatomy and various normal variants of the sinonasal tract cause difficulty in identifying the origin and extension of large sinonasal tumors, the invasion of vital structures such as the brain, optic nerves, and internal carotid artery affects patients’ prognosis. Thus, diagnostic imaging plays a key role in predicting the histological subtype and in evaluating a tumor extension into adjacent structures. This article describes the computed tomography and magnetic resonance imaging findings for malignant sinonasal tumors. |
format | Online Article Text |
id | pubmed-5742805 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-57428052017-12-29 Imaging Characteristics of Malignant Sinonasal Tumors Kawaguchi, Masaya Kato, Hiroki Tomita, Hiroyuki Mizuta, Keisuke Aoki, Mitsuhiro Hara, Akira Matsuo, Masayuki J Clin Med Review Malignancies of the nasal cavity and paranasal sinuses account for 1% of all malignancies and 3% of malignancies of the upper aerodigestive tract. In the sinonasal tract, nearly half of all malignancies arise in the nasal cavity, whereas most of the remaining malignancies arise in the maxillary or ethmoid sinus. Squamous cell carcinoma is the most common histological subtype of malignant tumors occurring in this area, followed by other epithelial carcinomas, lymphomas, and malignant soft tissue tumors. Although many of these tumors present with nonspecific symptoms, each tumor exhibits characteristic imaging features. Although complex anatomy and various normal variants of the sinonasal tract cause difficulty in identifying the origin and extension of large sinonasal tumors, the invasion of vital structures such as the brain, optic nerves, and internal carotid artery affects patients’ prognosis. Thus, diagnostic imaging plays a key role in predicting the histological subtype and in evaluating a tumor extension into adjacent structures. This article describes the computed tomography and magnetic resonance imaging findings for malignant sinonasal tumors. MDPI 2017-12-06 /pmc/articles/PMC5742805/ /pubmed/29211048 http://dx.doi.org/10.3390/jcm6120116 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Kawaguchi, Masaya Kato, Hiroki Tomita, Hiroyuki Mizuta, Keisuke Aoki, Mitsuhiro Hara, Akira Matsuo, Masayuki Imaging Characteristics of Malignant Sinonasal Tumors |
title | Imaging Characteristics of Malignant Sinonasal Tumors |
title_full | Imaging Characteristics of Malignant Sinonasal Tumors |
title_fullStr | Imaging Characteristics of Malignant Sinonasal Tumors |
title_full_unstemmed | Imaging Characteristics of Malignant Sinonasal Tumors |
title_short | Imaging Characteristics of Malignant Sinonasal Tumors |
title_sort | imaging characteristics of malignant sinonasal tumors |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5742805/ https://www.ncbi.nlm.nih.gov/pubmed/29211048 http://dx.doi.org/10.3390/jcm6120116 |
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