

[摘要] 目的 分析并探討CT、MRI在原發(fā)性腦淋巴瘤診斷中的特點(diǎn)。方法 回顧性分析2013年3月—2016年3月于該院就診的,已經(jīng)經(jīng)手術(shù)病理證實(shí)的38例原發(fā)性腦淋巴瘤患者CT、MRI影像學(xué)資料特點(diǎn),包括病灶數(shù)目、位置、大小等。其中28例病灶單發(fā),10例病灶多發(fā)。全腦都有發(fā)生,33例幕上,5例幕下。病灶平均大小為(2.7×2.4×2.2)cm。38例均為B細(xì)胞非何杰金氏淋巴瘤。 結(jié)果 CT圖像:斷層多為圓形或者近圓形,大小一般為半徑1 cm左右,邊界清晰,容易分辨,對(duì)患者顱內(nèi)進(jìn)行平掃顯示大多是高密度或等密度,其中高密度27例,進(jìn)一步增強(qiáng)掃描結(jié)果顯示,38例全部強(qiáng)化,34例均勻而明顯強(qiáng)化,4例環(huán)形明顯強(qiáng)化,;MRI圖像:病灶具有清晰的邊界,均勻的信號(hào),T1W1表現(xiàn)為等或低信號(hào),T2W1表現(xiàn)為等或稍高信號(hào),增強(qiáng)時(shí)多表現(xiàn)為均勻,只有4例表現(xiàn)為不均勻強(qiáng)化,4例硬膜尾征。 結(jié)論 CT、MRI在原發(fā)性腦淋巴瘤診斷中具有重要作用,但較難確診,依然需要依靠手術(shù)病理學(xué)檢查。
[關(guān)鍵詞] CT;MRI;原發(fā)性腦淋巴瘤;診斷
[中圖分類號(hào)] R445 [文獻(xiàn)標(biāo)識(shí)碼] A [文章編號(hào)] 1674-0742(2016)10(b)-0190-04
[Abstract] 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 pathology examination.
[Key words] CT; MRI; Primary brain lymphoma; Diagnosis
原發(fā)性腦淋巴瘤發(fā)生率較低,大多為轉(zhuǎn)移瘤,占顱內(nèi)腫瘤發(fā)生率的1%[1]。研究表明[2],近年來原發(fā)性腦淋巴瘤發(fā)生率有上漲趨勢(shì),比90年代上升了2~4倍。臨床上,該病初期無癥狀,因此診斷不利,發(fā)現(xiàn)時(shí)常常已較晚,治愈率及存活率較低[3-4]。近來,對(duì)于原發(fā)性腦淋巴瘤的診斷主要是利用影像分析,該研究特回顧性分析了2013年3月—2016年3月于該院就診的,已經(jīng)經(jīng)手術(shù)病理證實(shí)的38例原發(fā)性腦淋巴瘤患者影像資料,現(xiàn)報(bào)道如下。
1 資料與方法
1.1 一般資料……p>