Abstract:
OBJECTIVE:To record the MR imaging features of primary central nervous system lymphoma (PCNSL) and compare these features in monofocal and multifocal disease. MATERIALS AND METHODS:Twenty-one cases of monofocal disease were compared to five cases of multifocal disease. All patients were examined by non-enhanced and contrast-enhanced MRI. Tumor location, tumor size, signal intensity, enhancement characteristics, age distribution, peritumoral edema, cystic changes, and the presence of calcifications were assessed. The MRI features were compared between the monofocal and multifocal disease cases. RESULTS:The 26 cases, including both the monofocal and multifocal cases, exhibited 37 lesions. Contrast-enhanced images showed variable enhancement patterns: homogeneous enhancement (33 lesions), ring-like enhancement (2), and 'open-ring-like' enhancement (2). The 'notch sign' was noted in four of 33 homogeneously enhancing lesions. One case of hemorrhage and three cases of cystic formation were observed. Intra-tumoral calcification was not found. The frontal lobe, the corpus callosum and the basal ganglia were commonly affected in both the monofocal and multifocal groups. Tumor size differed significantly between the two groups (t = 3.129, p < 0.01) and mildly or moderately enhanced lesions were more frequently found in the monofocal group (p < 0.05). There was no statistical difference between perifocal edema (p > 0.05) and the signal characteristics (p > 0.05) between the two groups. CONCLUSION:Our data show that PCNSL has a variable enhancement pattern on MR images. We first reported two lesions with an 'open-ring' enhancement as well as four cases with a 'notch sign'. Monofocal PCNSL cases typically have larger sized tumors with mild or moderate enhancement.
journal_name
Korean J Radioljournal_title
Korean journal of radiologyauthors
Zhang D,Hu LB,Henning TD,Ravarani EM,Zou LG,Feng XY,Wang WX,Wen Ldoi
10.3348/kjr.2010.11.3.269subject
Has Abstractpub_date
2010-05-01 00:00:00pages
269-77issue
3eissn
1229-6929issn
2005-8330journal_volume
11pub_type
杂志文章abstract::Radiologic findings of Middle East respiratory syndrome (MERS), a novel coronavirus infection, have been rarely reported. We report a 30-year-old male presented with fever, abdominal pain, and diarrhea, who was diagnosed with MERS. A chest computed tomographic scan revealed rapidly developed multifocal nodular consoli...
journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2016.17.1.166
更新日期:2016-01-01 00:00:00
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journal_title:Korean journal of radiology
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journal_title:Korean journal of radiology
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2016.17.5.797
更新日期:2016-09-01 00:00:00
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journal_title:Korean journal of radiology
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journal_title:Korean journal of radiology
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更新日期:2009-09-01 00:00:00
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journal_title:Korean journal of radiology
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更新日期:2014-11-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
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更新日期:2011-07-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
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journal_title:Korean journal of radiology
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更新日期:2012-11-01 00:00:00
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pub_type: 杂志文章
doi:10.3348/kjr.2019.0765
更新日期:2020-09-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2018.19.2.320
更新日期:2018-03-01 00:00:00
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pub_type: 杂志文章
doi:10.3348/kjr.2012.13.5.618
更新日期:2012-09-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
doi:10.3348/kjr.2019.0500
更新日期:2020-02-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2003-07-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2006.7.4.267
更新日期:2006-10-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.3348/kjr.2011.12.6.686
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pub_type: 杂志文章
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journal_title:Korean journal of radiology
pub_type: 杂志文章
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2014.15.3.356
更新日期:2014-05-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
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更新日期:2020-08-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2011.12.1.52
更新日期:2011-01-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2019.0820
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pub_type: 杂志文章
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
doi:10.3348/kjr.2010.11.4.457
更新日期:2010-07-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章
doi:10.3348/kjr.2008.9.4.386
更新日期:2008-07-01 00:00:00
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journal_title:Korean journal of radiology
pub_type: 杂志文章,评审
doi:10.3348/kjr.2018.0416
更新日期:2019-03-01 00:00:00