【摘要】 目的:探讨原发于舌根的弥漫大B细胞淋巴瘤的MR影像学特点。方法:回顾性分析经手术或活检病理证实为舌根部大B细胞淋巴瘤的9例患者的术前MR影像资料,主要观察病变的发生部位、形态、大小、信号、边界、累及范围和淋巴结转移情况等。结果:9例患者的主要MRI表现为舌根部黏膜下肿块,呈类圆形(4例)或不规则形(5例),边界清楚,直径2.0~4.5cm,T2WI上呈均匀高信号,增强扫描呈中度均匀强化。邻近的扁桃体受压变形5例,其中3例肿块与扁桃腺分界不清;7例(7/9)有单侧或双侧颈部淋巴结肿大。结论:MRI能很好地显示舌根部弥漫大B细胞淋巴瘤的影像学特征,有助于肿瘤的术前诊断和分期。更多还原

【Abstract】 Objective:To explore the MR characteristics of primary diffuse large B-cell lymphoma at the base of tongue.Methods:The MRI data of 9patients with primary diffuse large B-cell lymphoma at the base of tongue were retrospectively analyzed,the main features of the tumors including site,morphology,size,signal intensity,border and extent were evaluated.Results:The main MRI features of the 9cases were as follows:submucosal tumor at tongue base,oval(n=4)or irregular(n=4)in shape,well defined margin,diameter of 2.0~4.5cm,homogeneous hyper-intensity on T2 WI,and moderate homogeneous enhancement.The adjacent tonsil was compressed and deformed in 5cases,of which the border between the tumor and tonsil was unclear in 3cases.Unilateral or bilateral enlargement of cervical lymph nodes was noted in 7(7/9)cases.Conclusion:MRI shows good performance in displaying primary diffuse large B-cell lymphoma at tongue base,and is helpful for preoperative diagnosis and staging.更多还原