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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...

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Autores principales: Kawaguchi, Masaya, Kato, Hiroki, Tomita, Hiroyuki, Mizuta, Keisuke, Aoki, Mitsuhiro, Hara, Akira, Matsuo, Masayuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
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.
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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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