CT、MRI在原发性脑淋巴瘤诊断中的特点分析

目的：分析并探讨CT、MRI在原发性脑淋巴瘤诊断中的特点。方法回顾性分析2013年3月-2016年3月于该院就诊的,已经经手术病理证实的38例原发性脑淋巴瘤患者CT、MRI影像学资料特点,包括病灶数目、位置、大小等。其中28例病灶单发,10例病灶多发。全脑都有发生,33例幕上,5例幕下。病灶平均大小为(2.7×2.4×2.2)cm。38例均为B细胞非何杰金氏淋巴瘤。结果 CT图像：断层多为圆形或者近圆形,大小一般为半径1 cm左右,边界清晰,容易分辨,对患者颅内进行平扫显示大多是高密度或等密度,其中高密度27例,进一步增强扫描结果显示,38例全部强化,34例均匀而明显强化,4例环形明显强化,；MRI图像：病灶具有清晰的边界,均匀的信号,T1W1表现为等或低信号,T2W1表现为等或稍高信号,增强时多表现为均匀,只有4例表现为不均匀强化,4例硬膜尾征。结论 CT、MRI在原发性脑淋巴瘤诊断中具有重要作用,但较难确诊,依然需要依靠手术病理学检查。

Analysis of the CT and MRI in Primary Brain Lymphoma Diagnosis

Objective Analysis and discusses characteristics of CT and MRI in the diagnosis of primary brain lymphoma. Methods Retrospective analysis of 3 retrospective analysis from March 2013 to March 2016, has been confirmed by surgical pathology were retrospectively analyzed with 38 cases of primary brain lymphoma patients with CT and MRI imaging data characteristics, including number of lesions, location and size, etc.. 28 cases were single, 10 cases of multiple lesions. The whole brain has occurred, tent of 33 cases, 5 cases under the act. Average size of lesions (2.7×2.4×2.4) cm. 38 cases of B cell non-hodgkin's lymphoma. Results CT images: fault is circular or suborbicular, more size is commonly radius of 1 cm, the boundary is clear, easy to distinguish, for patients with intracranial scan shows are mostly high density or equal density, high density and 27 cases, further enhanced scan, according to the results of 38 cases were improved, 34 cases of uniform and strengthen obviously, obviously improved, 4 cases of annular;MRI images: lesions with clear boundary, uniform signals, T1W1 performance for or low signal, such as T2W1 as or slightly high signal, such as enhanced when more characterized by uniform, only 4 cases characterized by uneven reinforcement, 4 cases of dural tail sign. Conclusion CT and MRI plays an important role in the primary brain lymphoma diagnosis, but more difficult to diagnose, still need to rely on surgical pathol-ogy examination.