| Computed Tomography and Magnetic Resonance Imaging Features of Posterior Mediastinal Ganglioneuroma. | |
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MedLine Citation:
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PMID: 21263353 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: To evaluate computed tomography (CT) and magnetic resonance (MR) imaging findings of posterior mediastinal ganglioneuromas. MATERIALS AND METHODS: Of 14 pathologically confirmed ganglioneuromas seen in 13 patients, 13 were evaluated by CT images with and without contrast, 11 were evaluated with conventional spin-echo MR images, and 5 were evaluated with contrast-enhanced MR examination. The morphologic features, attenuation, signal intensity, and dynamic enhancement pattern of the neoplasms were evaluated. RESULTS: All lesions were identified as a well-demarcated oval and/or lobular mass. CT attenuation was predominantly low. Calcification on CT scan was seen in 38% of the cases. Whorled appearance (42%) and tailed-shaped edge (14%) were seen on both CT and MR images. Fat components (29%) observed histologically were also detected in tumors on CT and MR images. MR signal intensity in the lesions was mainly low on T1-weighted images and high on T2-weighted images. Contrast enhancement of the tumors was poor in 46% on dynamic CT study. In all 5 contrast-enhanced MR examinations, all lesions were enhanced. CONCLUSIONS: The characteristic findings of posterior mediastinal ganglioneuromas are a craniocaudally oblong-shaped mass, calcification, whorled appearance, tail-like extension, and fat component. Poor enhancement on dynamic CT studies is commonly observed. |
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Authors:
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Maho Kato; Masaki Hara; Yoshiyuki Ozawa; Shigeki Shimizu; Yuta Shibamato |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-1-21 |
Journal Detail:
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Title: Journal of thoracic imaging Volume: - ISSN: 1536-0237 ISO Abbreviation: - Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2011-1-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8606160 Medline TA: J Thorac Imaging Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Departments of *Radiology †Clinical Pathology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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