查询词典 malignant tumor

Primary atrial tumor has obvious characteristic on RT-3DE: All the atrial tumor display the same size of stereoimages as the tumor themselves. There is a clear boundary between the stereoimage of the myxoma and the atrial wall and there exists a short pedicle connecting the atrial myxoma to the atrial wall or the interatrial septum. The body of the atrial myxoma moves to and fro through the atrium and the atrioventricular valve with the contraction and relaxation of the heart with a fixative pedicle. Atrial myxoma leads to relative atrioventricular valve incompetence during systolic phase and relative atrioventricular valve stenosis during diastolic phase, but doesn't result in pathological changes of atrioventricular valve which restore to normal after exsection of the atrial myxoma. Malignant atrial tumor closely and extensively contact with atrial wall without obvious boundary, pedicle and movement with the contraction and relaxation of the heart.

所有心房肿瘤RT-3DE均实时显示与肿瘤大小相同的立体形态图像；心房黏液瘤立体形态图像与心房壁界限明显，都通过一短蒂与房间隔或心房壁相连，瘤体以蒂为固定点随心脏收缩、舒张在心房与房室瓣口之间往返运动；心房黏液瘤收缩期瘤体导致房室瓣相对关闭不全，舒张期瘤体导致房室瓣相对狭窄，但瘤体不引起房室瓣器质性病变，瘤体摘除后房室瓣功能即恢复正常；恶性心房肺瘤立体形态图像与心房壁关系密切，界限不明显，接触范围广泛，无蒂，瘤体不随心脏收缩、舒张运动。

The malignant tumors included osteogenic osteosarcoma,metastasis tumor(six patients,two with pathologic fractures),chondrosarcoma,malignant fibrous histiocytoma (three patients,one with pathologic fracture),fibrosarcoma,and solitary myeloma.all patients received limb savage procedure with custom knee prosthesis including sevnteen cases of hinge joint and twentyone cases of posterior stability joints.Results One of nine patients with benign tumors was lost for followedup,one patient died of unrelated disease,the remained patients have excellent function in five patients,good function in one case,and one poor according to the Enneking evaluating system.the limb salvage rate was 100％.Seven patients were lost for followedup in twentynine of malignant tumors,two patient with malignant fibrous histiocytoma received amputation due to local recurrence nine months postoperatively.Ten patients had excellent function,four good and six poor among the followedup patients.The type of prosthesis in six of all patients with poor function was hinge.

结果 9 例良性肿瘤患者1 例失访，1 例死于其他不相关疾病，其余7 例病人随访时膝关节功能按Enneking制定的标准进行评定，优5 例，良1 例，差1 例，保肢成功率为100％；29 例恶性骨肿瘤患者，骨肉瘤患者失访7 例，2 例患者术后局部复发，行截肢术；其余20 例患者生存期间膝关节功能优10 例，良4 例，差6 例。7 例效果评价差的病人为有6 例为铰链式膝关节假体。

Results Of the twelve patients, seven cases were right ventricular tumor (58.3%) and live cases were left ventricular tumor (41.7%). Eight patients had undergone the tumor resection. Five cases were myxoma, other three cases were lipoma. angeioma and malignant mesothelioma respectively.

结果 超声诊断心室占位12例，其中右室占位7例(58.3%)，左室占位5例(41.7%)，手术8例，术中所见与超声诊断一致，符合率为100%，病理证实黏液瘤5例，脂肪瘤l例，血管瘤l例，恶性间皮瘤1例。

RT-3DE shows clearly full view of the primary atrial tumor than two-dimensional echocardiography and obvious image differences between atrial myxoma and malignant atrial tumor. It is a convenient, quick and precise modality for diagnosing primary atrial tumor and may be of significant clinical value for the diagnosis of primary atrial tumor.

RT-3DE比二维超声心动图更清晰显示原发心房肺瘤全貌形态，黏液瘤与恶性心房肿瘤图像特征差别明显，RT-3DE是诊断原发心房肿瘤简便、快捷和准确的检查方法，RT-3DE对原发心房肿瘤具有重要临床诊断价值。

Nature of tumor margin, cellular pleomorphism, frequency of mitoses and tumor necrosis were statistically appropriate composition in histological diagnosis of phyllode tumor. Wide local excision is preferred for the benign and borderline phyllode tumor, while simple mastectomy is indicated for recurred borderline and malignant, but tylectomy should be abolished in the treatment of phyllode tumor.

良性、交界性和恶性叶状肿瘤应废止以往常用的肿物单纯切除术式；对于良性和交界性肿瘤至少应选择肿物连同周围2cm正常乳腺组织一并切除的扩大切除术；复发的交界性和恶性肿瘤要选择乳房单纯切除术式。

In this topic we detected the expression level of SDF-1,CXCR4,VEGF of the above two malignant hematological tumors as well as their relations to the tumor cell"s characters of drug resistance and infiltration etc, and then elucidated the change of the microenviroment" on the occurrence and development of hematologic tumor. This topic may provide some theoretical and clinical proofs for finding out some new therapeusis to the above two malignant hematological tumors.

本课题旨在通过研究急性白血病和恶性淋巴瘤患者SDF-1、CXCR4、VEGF的表达水平及其与肿瘤细胞迁移、耐药、浸润的关系，阐明骨髓造血微环境和恶性淋巴瘤局部病变微环境的改变在上述血液肿瘤发生发展中的作用及其与血管新生的联系，为从新的角度探索白血病、淋巴瘤的治疗方法提供理论及临床依据。

objective to evaluate the role of mr perfusion weighted imaging in preoperation diagnosis of meningiomas.methods mr perfusion weighted images was performed in 47 patients with meningiomas followed by conventional imaging.results the mean rcbv values of angioblastic was the highest in the parenchyma of tumor.the mean rcbv values of malignant group was the lowest.the biggest mean rcbv values among different type meningiomas was statistically significant.the biggest mean rcbv values between benign and malignant group meningiomas was statistically significant,but not in the peri-tumor edema.conclusion the rcbv values were useful in the preoperative differentiation diagnosis of different types of meningiomas.those in the peri-tumor edema were useless in the preoperative differentiation diagnosis of different types of meningiomas.

目的 探讨磁共振灌注成像技术对脑膜瘤术前分型及良恶性鉴别的临床应用价值。方法对47例脑膜瘤病人行mr灌注成像检查，对5种亚型的良性脑膜瘤的mr灌注成像进行分析，并与非典型性及恶性脑膜瘤进行比较。结果血管瘤型脑膜瘤实质部分的rcbv值均数最高，恶性组脑膜瘤的rcbv值均数最低。各亚型间瘤体实质最大rcbv值均数间差异有统计学意义(p＜0.05)，良恶性脑膜瘤实质部分最大rcbv值均数间差异有统计学意义(p＜0.05)。瘤周水肿区的rcbv值均数间差异无统计学意义(p＞0.05)。结论 rcbv值对脑膜瘤术前分型及良恶性鉴别有所帮助，而瘤周水肿区的rcbv值对脑膜瘤分型及良恶性鉴别未显示临床实用价值。

Pleomorphic adenoma is the most common gland tumor of parotid origin, accounting for 60 to 70%. This kind of tumor usually presents as a slow-growing painless mass anteroinferior to the ear. The diagnosis is based on physical examination, image studying and even fine needle aspiration biopsy. The optimal method of treatment of such tumors is local excision or paroidectomy in which the entire capsule is totally dissected off but the facial nerve is spared. Diagnosis and treatment planning are focused on preventing tumor recurrence and consequent malignant transformation.

腮腺之多形性腺瘤乃是唾液腺最常见的肿瘤，约占所有唾液腺良性肿瘤的百分之六十至七十，这类的肿瘤在临床上的表现常是耳下缓慢增生的无痛性肿块，临床上诊断的依据必须配合临床检查、电脑断层扫描、磁振造影及细针抽取切片的病理检查方可得知，其治疗方式主要是对肿瘤进行局部切除手术或腮腺的切除手术，手术中颜面神经需小心保留，但须将肿瘤的外膜部分切除乾净，诊断及治疗计画著重在预防肿瘤复发及肿瘤产生恶性转变。

There were 22 malignant tumors including 11 osteosarcomas, 5 chondrosarcomas, 2 malignant fibrous histocytomas, and one each of malignant osteoblastoma, alveolar sarcoma, rhabdomyosarcoma, malignant giant cell tumor of bone. 28 benign tumors included 27 giant cell tumors of bone and 1 benign fibrous histocytoma.

肿瘤类型：恶性肿瘤22例，其中骨肉瘤11例，软骨肉瘤5例，恶性纤维组织细胞瘤2例，恶性骨母细胞瘤、腺泡状肉瘤、横纹肌肉瘤、骨巨细胞肉瘤各1例；良性肿瘤28例，其中骨巨细胞瘤27例，良性纤维组织细胞瘤1例。

From the present study, it has been demonstrated that CD44 is cleaved subsequently by MT1-MMP and Presenilins in PC-3 Cells, and in turn causes the release of the CD44ICD. CD44ICD translocates into nuclear and may regulate the tumor cells malignant phenotype via NF-κB pathway which plays a critical role in the malignant progression of prostate cancer, interruption of this pathway might contribute to the inhibition of tumor growth and invasion.

本研究表明：在PC-3细胞中CD44分子分别受MT1-MMP和Presenilin1/2的作用，最终导致CD44ICD从膜结合型CD44ΔE的水解释放并转移进核，并可能通过调控NF-κB等转录因子，影响肿瘤细胞的恶性表型。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。