摘要
目的探讨CT和MRI检查对颅骨及硬膜恶性淋巴瘤诊断及治疗后随访的临床价值。方法回顾性分析10例病理证实的颅骨及硬膜恶性淋巴瘤的治疗前、后CT及MRI影像资料。结果5例CT检查表现为局限性颅骨内外软组织肿块,平扫呈等密度,增强后较明显强化;10例MRIT1WI上呈等低信号,T2WI呈等信号,7例增强后病灶显著均匀强化,3例呈不均匀强化,4例相邻的脑实质见中度水肿带,10例颅骨改变均较轻微,CT骨窗位上呈轻度虫蚀样改变,颅骨外形尚完整,MRI上仅表现为局限性颅骨信号减低。10例化疗及放疗后均进行了多次CT及MRI复查,均显示软组织肿块范围明显缩小或消失。结论CT、MRI检查对颅骨及硬膜恶性淋巴瘤的诊断提供依据,并可作为放、化疗后疗效评估的最有效检查手段。
Objective To study the diagnostic and post-treatment follow-up values for the malignant dura and cranial vault lymphoma with imaging examination. Methods We analyzed retrospectively the CT and MRI imaging data often malignant dura and cranial vault lymphomas before and after treatment. Results CT showed a tmhomogeneously enhanced mass of the cranial extension in one case and iso- or hypo-density vault with both intra- and extra-calvarial on non-contrast CT scan in four cases. The mass was iso- or hypointense on the Tl-weighted image, iso-intense on the T2- weighted image and homogeneously enhanced with Gd-DTPA in seven cases and unhomogeneously enhanced in three case. There were underlying parenchymal vasogenic edema on four cases. CT images with bone windows revealed very slight bone destruction of the cranial vault and almost intact skull shape in all 10 cases. Abnormal signal of the cranial vault was only showed on MRI. Following-up CT and MRI imaging after chemical and/or radiated treatment would clearly show the degree of tumor decreased. Conclusion CT and MRI examination can provide evidence for diagnosing the malignant dura and cranial vault lymphoma ,and serves as the most effective following up tools for evaluating treated effectiveness.
出处
《中国CT和MRI杂志》
2009年第3期6-9,共4页
Chinese Journal of CT and MRI
关键词
B细胞型
恶性淋巴瘤
颅骨
硬膜
断层摄影术
X-线计算机
磁共振成像
B-cell
malignant lymphoma
cranial vault
dural mater
tomography
X-ray computed
magnetic resonance imaging.
