最常见的恶性原发性骨肿瘤是骨肉瘤。
The most common malignant primary bone tumors are osteosarcomas.
方法：采用MTT法体外药敏试验检测30例骨肉瘤患者外周血淋巴细胞和其肿瘤细胞对14种化疗药物的敏感性。
Methods: the sensitivity of14kinds of anticarcinogen in the peripheral blood lymphocytes and the tumor cells of30cases with osteosarcoma in vitro were tested by the MTT method.
骨肉瘤是原发于骨的肿瘤中最常见的一类恶性肿瘤，转移快，死亡率高。
Osteosarcoma is one of the commonest primary malignant tumors of bone. It metastasizes fast, and has a high death rate.
原发性心脏骨肉瘤罕见，只占心脏肿瘤的1%，通常源于左心房。
Primary cardiac osteosarcomas are rare, accounting for only 1% of all cardiac tumors, and they usually originate in the left atrium.
目的。评价骶骨脊索瘤及软骨肉瘤行肿瘤整块切除术后功能及肿瘤学结果。
Objective. To evaluate the functional and oncological outcomes following en bloc tumor excision for sacral chordomas and chondrosarcomas.
结果：X线平片清楚显示多中心骨肉瘤病灶， 放射性核素显像骨扫描可见肿瘤灶核素浓集。
Results The multifocal of osteosarcomatosis were clearly depicted by X- ray plain film, and the radionuclide concentration of tumor foci could be seen on radionuclide images.
与其它肿瘤一样，骨肉瘤的发生与凋亡机制有关。
As the other tumors, the osteosarcomatous genesis is correlated with apoptosis mechanism.
骨肉瘤是一种常见的恶性骨癌，占原发性骨恶性肿瘤的35%。
Osteosarcoma is the most common type of malignant bone cancer, accounting for 35% of primary bone malignancies.
骨肉瘤p 53基因多位于外显子GC序列，尤其是外显子7，有别于其他肿瘤好发位点。
The P53 gene mutation site in osteosarcoma was mostly in GC sequence of exon, especially in exon 7, which was different with other tumors.
骨肉瘤是儿童、青少年中最常见的原发恶性骨肿瘤。
Osteosarcoma is the most common malignant bone tumor in children and adolescents.
方法应用免疫组化和形态计量方法，检测80例骨肉瘤VEGF表达、肿瘤微血管密度（MVD），以及OS-732血管生成相关因子的表达。
Methods The expression of VEGF and intratumoral microvascular density(MVD) in 80 osteosarcomas and osteosarcoma cell OS-732 was detected by immunohistochemical staining.
自发肿瘤模型，诱发肿瘤模型和移植肿瘤模型是目前通常被采用的骨肉瘤动物模型建立方法。
Spontaneous model, chemical induced model and transplanted model are the usual methods of establishing animal model with this malignant tumor.
本实验目的：本实验进一步研究RH-01对体外培养的人源骨肉瘤HOS细胞和动物移植性肿瘤的抑制作用及特点，并初步探讨其作用机制。
The aim of the exprements is to investigate RH-01's inhibition to HOS cell in vitro and to transplantable tumor in mice, and to discuss basically its mechanism of action.
目的通过检测骨肉瘤手术前后患者血中一氧化氮(NO)的含量变化，研究NO与肿瘤手术治疗之间的关系。
Objective: to study the changes of blood nitric oxide (NO) in response to surgical treatment in patients with osteosarcoma.
成骨肉瘤是一种转移能力很强的恶性肿瘤，目前关于其转移的机制还不完全清楚。
Osteosarcoma is a malignant tumor with aggressive metastasis. The mechanism of metastasis, however, is not completely defined.
肿瘤复发率较高，远处转移率较低，生物学行为较长骨骨肉瘤为好。
The recurrence rate of the tumor was relatively high and the metastasis rate to lung was low. It seems that the tumor had good prognosis than osteosarcoma of long bone.
方法：应用免疫组化和形态计量方法，检测80例骨肉瘤TAF表达和肿瘤微血管密度。
Methods The expression of TAF and microvascular density count in 80 osteosarcomas were investigated by immunohistochemical staining and morphometric technique.
目的观察人骨肉瘤中s100A6蛋白的表达，探讨其与肿瘤转移的关系以及对预后的影响。
Objective to explore the relation between the expression of S100A6 protein and tumor metastasis in human osteosarcoma and to investigate its effect on the prognosis of osteosarcoma.
研究设计。回顾性研究20例因骶骨脊索瘤和软骨肉瘤行肿瘤整块切除术的患者。
Study Design. Retrospective study of 20 consecutive patients who underwent en bloc tumor excision of sacral chordomas and chondrosarcomas.
摘要软骨肉瘤是一种源自于软骨细胞的恶性肿瘤，在头颈部并不常见。
Chondrosarcoma of the mandible is uncommon , it is a malignant tumor of cartilagionous origin.
结论：CT和MRI是诊断斜坡脊索瘤有效的检查方法，斜坡脊索瘤必须与颅底骨软骨肉瘤、斜坡脑膜瘤和鼻咽部肿瘤鉴别。
Conclusion: the CT and MRI features of the clivus chordoma are useful for diagnosis, the clivus chordoma must be differentiated from chondrosarcoma, meningioma and nasopharynx tumors.
方法采用免疫组化方法检测OC、BSP、OPN在50例各型骨肉瘤肿瘤细胞、基质中的表达。
Methods Use immunohistochemistry method to detect the osteocalcin, bone sialoprotein and osteopontin expressions in tumor cells and matrix of 50 cases of osteosarcoma.
目的对骨肉瘤肿瘤血管产生机制进行初步的研究，观察骨肉瘤细胞是否有仿血管发生的能力。
Objective: to observe whether there is evidence for vascular channel formation by osteosarcoma cells in vitro and to illustrate mechanism of vasculogenic mimicry in osteosarcoma.
目的比较淋巴管内皮细胞对乳腺癌和骨肉瘤生长和转移的影响，分析淋巴管生成对肿瘤生长和转移影响的相关机制。
Objective To compare growth and metastasis of breast cancer cell and osteosarcoma cell influenced by co-inoculating human lymphatic endothelial cell (HLyEC), and to analyze its mechanisms.
软骨肉瘤是产生软骨基质的恶性肿瘤。
Chondrosarcomas are malignant tumors that produce cartilage matrix.
放、化疗作为骨外骨肉瘤的辅助治疗方法，在提高肿瘤的切除率和减少局部复发和远处转移等方面有帮助。
Radiotherpy and chemotherapy play an adjuvant role in the treatment of EOS, improve the resection rate and reduce the recurrence and metastasis.
经典型骨肉瘤是原发于髓腔内的高度恶性肿瘤，肿瘤细胞产生骨样组织，可能是极少量。
Conventional osteosarcoma is a primary intramedullary high grade malignant tumor in which the neoplastic cells produce osteoid, even if only in small amounts.
软骨肉瘤是软骨恶性肿瘤的起源。
Chondrosarcomas are malignant tumours of cartilaginous origin.
软骨肉瘤是软骨恶性肿瘤的起源。
Chondrosarcomas are malignant tumours of cartilaginous origin.
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