肿瘤

Embryonal carcinoma and neuroblastoma are both formed during embryonal development, retinoic acid can induce them to differentiate into neurons.

胚胎瘤和神经母细胞瘤都是胚胎发育期间形成的肿瘤，维甲酸可以诱导这两种肿瘤细胞向神经元方向分化，在研究神经元分化机理时作为细胞模型得以广泛应用。

Results Embryonal residual tumors are most common in all pediatric intraspinal tumors, next are gliomas.

结果儿童椎管内肿瘤以胚胎残余组织肿瘤为多见（43.7％），其次为胶质瘤（26.5％）。

The findings suggest that the cancers contain endocrinic characteristics, the prognostic of the patients with ER and PR expression in surrounding mucosa may be better, and more positive ER and PR in colorectal cancers will be found by using ABC.

大肠癌为性激素依赖性肿瘤；癌旁粘膜内检出ER、PR的肿瘤预后可能较好；ABC法应用在大肠癌中ER、PR有较高的检出率。

The sequence of the causes of death in male was circulatory system diseases,malignant neoplasms,respiratory diseases,accidents and digestive system diseases.The sequence in female was the circulatory diseases,malignant neoplasms,respiratory diseases,the endocrinological diseases and accidents.

男性死亡率死因顺位依次为：循环系、肿瘤、呼吸系、损伤和中毒及消化系疾病；女性死亡率死因顺位依次为：循环系、肿瘤、呼吸系、内分泌及损伤和中毒。

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。

The ependymoma was confirmed by postoperative pathology.McCormick grading scale:gradeⅠ in 23 cases,gradeⅡ 16 cases,grade Ⅲ 2 cases .31 cases were followed-up for a year after operation.

术后病理证实均为室管膜瘤。31例获得为期1年的随访，3例肿瘤次全切除患者1年内复发，再次行手术治疗；肿瘤全切除者无复发。

Results Of 80 cases 46 were acoustic neuromas (57.5%), 15 meningiomas (18.5%), 6 epidermoid cysts(7.5%), 5 trigeminal neuromas (6.3%) and 8 other rare tumors(10%).

结果 80例肿瘤中，听神经瘤46例(57.5%)，脑膜瘤15例(18.8%)，上皮样囊肿6例(7.5%)，三叉神经瘤5例(6.3%)及其它少见肿瘤8例(10%)。

The big difference between these two alternatie ways that tumour cells use to inactiate tumour suppressor genes is that, while the reersal of genetic alterations is technically almost unfeasible in clinical scenarios, the function of these epigenetically inactiated suppressor genes is easily reactiated by pharmacological means.

这两种改变方式最大的不同之处在于肿瘤细胞利用失活的肿瘤抑制基因，而在同时相反的遗传学改变在临床方案上是很难实施的技术。

The morphology and distribution of the eloquent cortex and white matter were evaluated by fMRI before the operation, and the epilepsy focus was localized to guide resections of the tumor and epileptogenic focus by ECoG records during the operation.

术前通过fMRI 了解相应脑功能区皮质和白质纤维束的形态和分布；术中在切除肿瘤前后行ECoG检测，确定致灶的位置，指导肿瘤及致灶的切除。

In well-differentiated tumors, HSP27 expression was higher than that in normal epithelia.

在低分化的肿瘤细胞中完全不表达，而在高分化的肿瘤细胞染色很深。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。