查询词典 leptomeninges

In contrast to hydrocephalus, fetuses with hydranencephaly hae a complete lack of cerebral tissue, and in contrast to anencephaly, there is coering by bone, skin, dura, and leptomeninges(33) Fig.

与脑积水相比较，患有水脑畸形的的胎儿完全缺乏脑组织，而与无脑畸形相比，它有骨、皮肤、硬脑膜和蛛网膜覆盖（图10-26）。

Superficial siderosis is a rare condition consisting of deposition of hemosiderin on the leptomeninges, as well as on the surface of the brain, cerebellum, brain stem and cranial nerves.

中枢神经系统表面含铁血黄素沉积症是含铁血黄素沉积于软脑膜及大脑、小脑、脑干、颅神经表面的一种罕见疾病。

Results: MRI features of primary malignant lymphoma were as follows:① single or multiple lesions, mostly in supratentorial region;② round or irregular in shape, hypointense on T1WI, hypointense or isointense on T2WI with homogenous signal;③ mild edema around the lesion with mild space occupying effect;④ remarkab1e enhancement of the lesion;⑤ involvement of leptomeninges and/or dissemination via ventricular ependyma;⑥ sensitive to chemotherapy and radiotherapy. Size and shape changed remarkedly after treatment.

结果：脑内淋巴瘤MRI表现为：①种瘤单发或多发，以幕上分布为主；②形态圆形或不规则形，T1WI呈低信号，T2WI以高信号为主，信号不均匀；③瘤周水肿及占位效应较轻；④增强扫描肿瘤明显不均匀强化；⑤可侵及软脑膜、室管膜并沿之播散；⑥肿瘤对放疗和化疗敏感；形态、大小变化明显。

Results MRI features of intracranial lymphoma were as follows:(1) Single or multiple lesions,most in supratentorial site.(2) Round or irregular in shape,hypointensity on T1WI and isointensity or hyper-intensity on T2WI,with homogenous signal.(3) Edema around the lesion,with mild space-occupying effect.(4) Markedly enhanced.(5) Disseminated via leptomeninges and/or via ventricular ependyma.(6) Sensitive to chemotherapy and radiotherapy.(7) Changeable in size and shape.

结果 病灶单发或多发，以幕上分布为主；圆形或不规则形，T1WI呈低信号，T2WI呈等或高信号，信号多均匀；瘤周水肿及占位效应多较轻；增强扫描病灶均明显强化；可侵及软脑膜和/或室管膜并沿之播散；对放、化疗敏感；形态、大小可变化。

Results: MRI features of primary malignant lymphoma were as follows:①single or multiple lesions, mostly in supratentorial region;②round or irregular in shape, hypointense on T1WI, hypointense or isointense on T2WI with homogenous signal;③mild edema around the lesion with mild space occupying effect;④remarkable enhancement of the lesion;⑤involvement of leptomeninges and/or dissemination via ventricular ependyma;⑥sensitive to chemotherapy and radiotherapy. Size and shape changed remarkedly after treatment.

结果：脑内淋巴瘤MRI表现为：①肿瘤单发或多发，以幕上分布为主；②形态圆形或不规则形， T1WI呈低信号， T2WI以高信号为主，信号不均匀；③瘤周水肿及占位效应较轻；④增强扫描肿瘤明显不均匀强化；⑤可侵及软脑膜、室管膜并沿之播散；⑥肿瘤对放疗和化疗敏感；形态、大小变化明显。

Primary melanoma of the leptomeninges is even rarer.

而脑/脊膜部位的原发性恶黑就更加罕见了。

Methods Leptomeninges tissue were dissected from SD rats by 2.5 g.L-1 trypsin and mechanical blow and then were cultivated.

方法用机械吹打法和2.5 g.L-1胰蛋白酶轻消化法剥离SD乳鼠软脑膜组织后培养。

Imaging characteristics: gyriform/linear enhancement and calcification of the leptomeninges and cortex, which are the result of meningovascular fibroblastic proliferation.

脑回状、线状强化和软脑膜及皮质钙化，这是由于脑脊膜血管的纤维增生所致。

At 1 to 7 days, GFP was expressed in leptomeninges over the brain stem, cortex and cerebral arteries, smooth muscle cells of small vessels were occasionlly transduced.

采用&枕大池二次注血法&建立兔迟发性脑血管痉挛的动物模型，第5天血管造影和病理学证实存在明显的血管痉挛。

Results: among 69 cases, 15 cases stageⅰ, 40 cases stage ⅱand 14 cases stage ⅲ. mr can display abnormal signal of tuberculous meningitis in each stage, particularlymr enhancement scan, which present obviously miliary nodus in the brain and the thickened leptomeninges. miliary nodus of the brain was located mostly frequently at the junctional area of white and gray matter, and the thickened leptomeninges were mostly at the bottom of the brain.

结果：69例中，ⅰ期15例，ⅱ期40例，ⅲ期14例，磁共振对各期结核性脑膜炎均能显示病变，尤其是mr增强扫描，对脑内粟粒性结节及脑膜炎性病变显示最佳，粟粒性结节常位于皮髓交界区，脑膜炎性病变则以脑底部明显。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。