病灶

objective to study mri diagnostic value on multiple sclerosis.methods mri examination data of 31 patients with multiple sclerosis were analysised retrospectively.results total 184 lesions were detectived in 31 patients.most lesions were located on white watter area beside the lateral ventricle,and a few lesions were located on the spinal cord,cerebellum,brain stem and corpus callosum.the shape of lesion can be circle or ellipse.the lesion showed as slightly long t1 and long t2 signal.the acute stage lesions can have enhancement.conclusions ms have characteristic findings on mri image.mri can show the patholoic changes,and provide strong evidence for clinic diagnosis of multiple sclerosis.

摘 要］目的：探讨多发性硬化（muliplle sclerosis，ms）的mri特征表现及其诊断价值。方法：回顾分析31例临床诊断为ms患者的mri检查资料。结果：31例共发现病灶184个，病灶于侧脑室旁白质区、半卵圆中心及皮层下区最多见，其次见于脊髓小脑、脑干及胼胝体，部分可见视神经受累，病灶呈卵圆形或圆形稍长t1、长t2信号，矢状位像见病灶与侧脑室垂直，急性病灶增强扫描有的可呈结节状、环状或斑点状强化。结论：在mri图像上ms有特征性表现，mri能反应ms病理变化，为临床诊断ms提供可靠依据。

The contrast of lesion-to-normal and lesion-to-CSF were higher in FLAIR, was particularly superior in demonstrating lesions in the hypophloeodal or paraventricular area.Small hemorrhagic foci in Sylvian cistern and the cerebral sulci can be easily shown in FLAIR and can?t be done in conventional T2WI.FLAIR was particular of superiority to demonstrate trauma and subarachnoid haemorrhage.

结果 FLAIR共检出病灶1889个，常规T2加权像检出1343个，FLAIR显示病灶的轮廓更为清晰，病灶与正常脑组织的对比度更高，在显示脑皮层下、脑室旁病灶方面更有优势，可显示常规MR T2加权像未能显示的侧裂池及脑表面脑沟的小出血病灶，在诊断颅脑外伤及蛛网膜下腔出血方面具有明显的优势。

The contrast of lesion-to-normal and lesion-to-CSF were higher in FLAIR,which was particularly superior in demonstrating lesions in the hypophloeodal or paraventricular area.Small hemorrhagic foci in Sylvian cistern and the cerebral sulci can be easily shown in FLAIR and can?t be done in conventional T2WI.FLAIR was particular of superiority to demonstrate trauma and subarachnoid haemorrhage.

结果 FLAIR共检出病灶1889个，常规T2加权像检出1343个，FLAIR显示病灶的轮廓更为清晰，病灶与正常脑组织的对比度更高，在显示脑皮层下、脑室旁病灶方面更有优势，可显示常规MR T2加权像未能显示的侧裂池及脑表面脑沟的小出血病灶，在诊断颅脑外伤及蛛网膜下腔出血方面具有明显的优势。

Of 11 cases of edema had diffusive uneven SCC lesions. 1 case of edema had single midline oval lesion of splenium. The brain lesions of edema were incontinuous. In follow-up MRI of 5 cases of brain edema, the lesions were disappeared. In 3 cases of cerebral infarct, the lesions of SCC and brain were lateral distribution. 2 cases of hemorrhagic disease had diffusive uneven lesions in SCC and ventricle.

水肿性病变(n=11)中10例MRI表现为SCC弥漫不均匀病灶、1例为居中类圆形病灶，颅内病灶呈跳跃不对称分布，5例MRI复查病灶消失。3例脑梗塞SCC及脑内病灶呈偏侧分布，脑内散在病灶以患侧较多。2例SCC出血，SCC病灶弥漫不均匀，并见脑室内出血。

Results: The findings were classified into 5 categories: posterior nasal drip (60.7%), glottic lesion (60.7%), oropharyngeal mass (13.1%), suspected laryngopharyngeal acid reflux (13.1%), and laryngeal neoplasm (0.7%). GL and PND both predominated in the only-1-category group (51.0%), PND+GL in the combined-2-category group (42.1%), and PND+GL+OPM in the combined-3-category group (4.1%).

仅1种病灶者(51.0%)以声门病灶或鼻涕倒流为多，合并2种病灶者(42.1%)以鼻涕倒流合并声门病灶最多，合并3种病灶者(4.1%)以鼻涕倒流合并声门病灶及口咽肿块最多；少数(2.8%)无任何发现。

Results Of the 35 cases, there were 5 monolocular cysts and 30 multilocular cysts; 39 lesions were found, including 19 lesions in 15 serous cystadenomas and 20 lesions in 20 mucous cystadenomas. The cystic wall was generally thin and regular, and sometimes nodular. The multilocular cysts were multihole, broken netlike or polycircular, and showed the irregular signals, while the monolocular cysts showed the uniform signals.

结果 35例共有39个囊灶，其中15例浆液性囊腺瘤共有19个病灶（4例双侧卵巢发病）；20例粘液性囊腺瘤均为单侧发病（包括交界性囊腺瘤3例）。5例为单囊病灶；30例为多囊多房性病灶，囊内有分隔，呈多房、破鱼网状、囊套囊状等，囊腺瘤囊壁一般较薄且规则，囊壁可有壁结节；单囊病灶信号均匀，多囊多房性病灶信号多不均匀。

Of the 26 lesions with pontine and bulbar involvement, three had no association with other lesions (Fig 2). Twelve were associated with tegmental and superior cerebellar peduncular extension, and six showed corticospinal tract involvement in continuity with an MDJ lesion. In one patient with additional telencephalic lesions, the right side of the pons was hyperintense on long TR/TE images that did not cross the midline, suggestive of an arterial lesion (Fig 3). In two patients with pontine tegmental lesions, there was an associated middle cerebellar peduncle and deep cerebellar white matter involvement (Fig 4). Two others had associated cervical lesions.

在26处脑桥延髓区病灶中，3处病灶仅限于脑桥延髓区，其它部位无病灶（图2）；12处病灶还同时伴有背盖部和小脑上脚/结合臂处病灶；6处病灶为与中脑-间脑接合处病灶相连的皮质脊髓束受累；还有1例患者除端脑见病灶外，右侧脑桥于T2像也见高信号病灶，但未超越正中线，提示可能系动脉病变所致（图3）；2例脑桥背盖部病灶的患者同时伴有小脑中脚/小脑脑桥脚和小脑深部白质受累（图4）；还有2处脑桥延髓区病灶还同时伴有颈髓病灶。

Results The supratentorial lesions involved the occipital lobe in 4, frontal lobe in 3, fronto-occipital lobe in 2, temporo-occipital lobe in 3, lateral ventricle in 1 case and the saddle region in 1. All the lesions were large in volume and most of them presented heterogeneous signals in MRI. Of the 14 cases, 12 showed cystic degeneration and necrosis, 2 had hemorrhage and 6 showed signs of emptied small blood vessels. Twelve cases had heterogeneous enhancement and 2 had moderate enhancement. Pathologically, 10 cases of neuroblastomas were identified, along with 3 ganglioneuroblastomas and 1 atypical rhabdoid tumor.

结果 病灶位于顶叶4例，额叶3例，枕顶叶2例，颞枕叶3例，侧脑室1例，鞍区1例，病灶普遍较大，病灶绝大多数信号不均匀，病灶内可见囊变／坏死（12例）、出血（2例）、流空小血管影（6例），增强后病灶呈明显不均匀强化（12例），中等强化2例；神经母细胞瘤10例，节细胞神经母细胞瘤3例，非典型横纹肌样瘤1例。

Results: Brain metastatic tumor were localized on cerebral hemisphere in 13 patients, on cerebellums in 2 patients and on both cerebral and cerebella hemispheres in 5 patients. The metastasis numbers shown by conventional images were 19, 3 and 13 cases respectively and the numbers found by enhanced images were 25, 5, and 19 cases respectively.

结果：单纯幕上双侧大脑半球内发现病灶的有13例，平扫发现19个病灶，增强扫描发现25个病灶；单纯幕下双侧小脑半球内发现孤立病灶2例，平扫3个病灶，增强扫描发现5个病灶，幕上幕下同时发现病灶的5例，平扫发现13个病灶，增强扫描发现19个病灶。

Results Of 30 cases, single lesions were found in 8 cases, and multi-lesions in 22 cases. 54 lesions were detected with normal MRI scanning, 72 lesions detection by FIR, and 96 lesions detection by enhancement scanning and 54 cavitates addition of these 96 lesions.

结果：30例中单发病灶8例，多发22例，平扫发现48个病灶，FIR发现72例，增强扫描发现96 个病灶，65个病灶直径大于3 cm；发现最小病灶直径3 mm；伴发空洞54例。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失