| MR imaging findings of cervical lymphadenopathy in patients with Kikuchi disease. | |
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MedLine Citation:
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PMID: 21993181 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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PURPOSE: The purpose of this study was to describe the MR imaging findings of cervical lymphadenopathy in patients with Kikuchi disease (histiocytic necrotizing lymphadenitis). MATERIALS AND METHODS: Nine patients with Kikuchi disease underwent MR imaging with a 1.5T unit including diffusion-weighted (DW) imaging and five of nine underwent gadolinium-enhanced MR imaging. MR images were reviewed for numbers, sizes, locations, focal hypointense areas on T2-weighted images, focal non-enhancing areas on gadolinium-enhanced MR images, and apparent diffusion coefficients (ADCs) of enlarged lymph nodes. RESULTS: 52 enlarged nodes (range, 2-11 nodes; mean, 5.8 nodes per patients) were identified. Lymphadenopathy was unilateral in 7 patients (78%) and bilateral in 2 (22%). Enlarged nodes were located at level IIA in 7 nodes, IIB in 23, III in 8, IV in 4, VA in 2, and VB in 8. Focal hypointense areas on T2-weighted images were found in 7 patients (78%) and 21 nodes (40%), and had a peripheral distribution in 19 nodes (90%) and had clear margins in 16 nodes (76%). Focal non-enhancing areas were seen in 3 patients (60%) and 6 nodes (23%). ADCs were variable (range, 0.69-1.78 [×10(-3)mm(2)/s]; mean, 1.01±0.28). CONCLUSION: Cervical lymphadenopathy in Kikuchi disease showed predominantly a unilateral distribution at levels II-V. Furthermore, Kikuchi disease should be considered when T2-weighted images demonstrate hypointensity areas at the peripheries of enlarged cervical nodes, which corresponded to histopathological findings of coagulative necrosis in paracortical areas. |
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Authors:
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Hiroki Kato; Masayuki Kanematsu; Zenichiro Kato; Takahide Teramoto; Naomi Kondo; Yoshinobu Hirose; Hiroaki Hoshi |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-11 |
Journal Detail:
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Title: European journal of radiology Volume: - ISSN: 1872-7727 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8106411 Medline TA: Eur J Radiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 Elsevier Ireland Ltd. All rights reserved. |
Affiliation:
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Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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