MR imaging features of benign retroperitoneal extra-adrenal paragangliomas

Abstract The goal of this study was to retrospectively review the magnetic resonance imaging (MRI) features of retroperitoneal extra-adrenal paragangliomas and to evaluate the diagnostic capabilities of MRI. Twenty-four patients with confirmed benign retroperitoneal extra-adrenal paragangliomas who...

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Autores principales:	Yanguang Shen, Yan Zhong, Haiyi Wang, Lu Ma, Yingwei Wang, Jingjing Pan, Kun Zhang, Zhonghua Sun, Huiyi Ye
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a27d24fdda0c4caf85ab628e86d93be2
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spelling	oai:doaj.org-article:a27d24fdda0c4caf85ab628e86d93be22021-12-02T16:08:19ZMR imaging features of benign retroperitoneal extra-adrenal paragangliomas10.1038/s41598-017-04753-y2045-2322https://doaj.org/article/a27d24fdda0c4caf85ab628e86d93be22017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04753-yhttps://doaj.org/toc/2045-2322Abstract The goal of this study was to retrospectively review the magnetic resonance imaging (MRI) features of retroperitoneal extra-adrenal paragangliomas and to evaluate the diagnostic capabilities of MRI. Twenty-four patients with confirmed benign retroperitoneal extra-adrenal paragangliomas who underwent preoperative MRI and surgical resection were enrolled. The patients’ clinical characteristics and MRI features were reviewed by two radiologists. There were no significant differences in the qualitative and quantitative MRI features were determined by the reviewers. High signal intensity in T2-weighted imaging (T2WI) and diffusion-weighted imaging (DWI) was observed in all tumors. In contrast T1-weighted imaging (T1WI) in the arterial phase, 83.33% of the tumors were clearly enhanced. In 87.5% of cases, a persistent enhancement pattern was observed in the venous and delayed phases, and 12.5% of tumors showed a “washout” pattern. The tumor capsule, intratumoral septum and degenerations were visualized in the tumors and may be helpful in the qualitative diagnosis of extra-adrenal paragangliomas in MRI. MRI was useful in locating the position, determining the tumor ranges and visualizing the relationship between the tumors and adjacent structures. The presence of typical clinical symptoms and positivity of biochemical tests are also important factors in making an accurate preoperative diagnosis.Yanguang ShenYan ZhongHaiyi WangLu MaYingwei WangJingjing PanKun ZhangZhonghua SunHuiyi YeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yanguang Shen Yan Zhong Haiyi Wang Lu Ma Yingwei Wang Jingjing Pan Kun Zhang Zhonghua Sun Huiyi Ye MR imaging features of benign retroperitoneal extra-adrenal paragangliomas
description	Abstract The goal of this study was to retrospectively review the magnetic resonance imaging (MRI) features of retroperitoneal extra-adrenal paragangliomas and to evaluate the diagnostic capabilities of MRI. Twenty-four patients with confirmed benign retroperitoneal extra-adrenal paragangliomas who underwent preoperative MRI and surgical resection were enrolled. The patients’ clinical characteristics and MRI features were reviewed by two radiologists. There were no significant differences in the qualitative and quantitative MRI features were determined by the reviewers. High signal intensity in T2-weighted imaging (T2WI) and diffusion-weighted imaging (DWI) was observed in all tumors. In contrast T1-weighted imaging (T1WI) in the arterial phase, 83.33% of the tumors were clearly enhanced. In 87.5% of cases, a persistent enhancement pattern was observed in the venous and delayed phases, and 12.5% of tumors showed a “washout” pattern. The tumor capsule, intratumoral septum and degenerations were visualized in the tumors and may be helpful in the qualitative diagnosis of extra-adrenal paragangliomas in MRI. MRI was useful in locating the position, determining the tumor ranges and visualizing the relationship between the tumors and adjacent structures. The presence of typical clinical symptoms and positivity of biochemical tests are also important factors in making an accurate preoperative diagnosis.
format	article
author	Yanguang Shen Yan Zhong Haiyi Wang Lu Ma Yingwei Wang Jingjing Pan Kun Zhang Zhonghua Sun Huiyi Ye
author_facet	Yanguang Shen Yan Zhong Haiyi Wang Lu Ma Yingwei Wang Jingjing Pan Kun Zhang Zhonghua Sun Huiyi Ye
author_sort	Yanguang Shen
title	MR imaging features of benign retroperitoneal extra-adrenal paragangliomas
title_short	MR imaging features of benign retroperitoneal extra-adrenal paragangliomas
title_full	MR imaging features of benign retroperitoneal extra-adrenal paragangliomas
title_fullStr	MR imaging features of benign retroperitoneal extra-adrenal paragangliomas
title_full_unstemmed	MR imaging features of benign retroperitoneal extra-adrenal paragangliomas
title_sort	mr imaging features of benign retroperitoneal extra-adrenal paragangliomas
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/a27d24fdda0c4caf85ab628e86d93be2
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MR imaging features of benign retroperitoneal extra-adrenal paragangliomas

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