磁共振波谱成像在诊断表现为脑肿瘤的脑淀粉样血管病中的应用
MR spectroscopy in the diagnosis of cerebral amyloid angiopathy presenting as a brain tumor.
作者信息
Safriel Yair, Sze Gordon, Westmark Kaye, Baehring Joachim
机构信息
Department of Radiology, Neuroradiology Section, Yale University School of Medicine, 333 Cedar Street, New Haven, CT 06520, USA.
出版信息
AJNR Am J Neuroradiol. 2004 Nov-Dec;25(10):1705-8.
Abstract
We present two cases of focal, tumefactive, masslike lesions of diffuse cerebral amyloid angiopathy (CAA) that presented as areas of increased signal intensity on long TR sequences without contrast enhancement or restricted diffusion. MR spectroscopy revealed normal metabolite ratios and unremarkable spectra. Pathologic tissue showed CAA and CAA with angitis of the CNS. Tumefactive CAA is a rare condition, and we describe its characteristics at MR spectroscopy and diffusion-weighted imaging.
摘要
我们报告了两例弥漫性脑淀粉样血管病（CAA）的局灶性、肿胀性、肿块样病变，在长TR序列上表现为信号强度增加区域，无对比增强或扩散受限。磁共振波谱显示代谢物比率正常且波谱无异常。病理组织显示为CAA和伴有中枢神经系统血管炎的CAA。肿胀性CAA是一种罕见疾病，我们描述了其在磁共振波谱和扩散加权成像中的特征。
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