【Abstract】ObjectiveTo discuss the molecular structures and functions of Alu repeats,and its relationships with malignant tumors. MethodsAdvances in molecular biology and oncology of Alu repeats in recent years had been reviewed. ResultsHomologous recombination between Alu repeats may result in various genetic exchanges,including duplications, deletions and translocations,cause a series of malignancy alteration by activating some oncogenes. ConclusionAlu repeats as a sort of multifunction regulatory sequences may play an important role during the carcinogenesis and progression of some tumors.
【摘要】 目的 评价大分割适形放射治疗对腹膜后软组织肿瘤术后患者的治疗作用。 方法 对1998年10月-2003年4月收治的16例腹膜后软组织急性肿瘤术后患者行大分割适形放射治疗，设计临床靶区等效生物剂量为55～62 Gy，观察放疗后2、5年局部控制率、生存率和无病生存情况。 结果 2、5年局部控制率较未行放疗患者明显提高并和其他放射治疗方式达到较高治疗剂量者近似；远期生存无改善，无病生存率较未行放疗患者有提高。 结论 大分割适形放射治疗方式对腹膜后软组织急性肿瘤术后患者有较好的局部控制作用，无瘤生存率有提高，远期生存无改善，无严重的远期放疗后遗症。【Abstract】 Objective To observe the effect of high-dose three-dimensional conformal radiotherapy combined with surgery on primary retroperitoneal soft tissue sarcoma. Methods A total of 16 patients with primary retroperitoneal soft tissue sarcoma underwent high-dose three-dimensional conformal radiotherapy after sarcoma excision from October 1998 to April 2003. The biologically effective dose was 55-62 Gy for CTV. The local control rate and long-term survival rate and disease free survival after 2 and 5 years were observed. Results The local control rate obviously raised in these patients after 2 and 5 years; but the long-term survival rate didn’t improve and the disease free survival improved in these patients compared with those wasn’t radiated. Conclusion High-dose three-dinensional comfomal radiotherapy is effective on the patients with retroperitoneal soft tissue sarcoma in local control rate and disease free survival, but long-term survival rate is not improved and the side-effect is not serious.
目的 探讨皮肌炎合并乳腺恶性肿瘤的临床特征、诊治及预后情况。方法 回顾性分析我科自2008年以来收治的3例皮肌炎合并乳腺恶性肿瘤患者的临床资料,就两者关系结合文献进行分析。结果 3例皮肌炎合并乳腺恶性肿瘤患者中2例行乳腺癌改良根治术,病理报告为浸润性导管癌(淋巴结14/21枚转移)和原位癌(淋巴结0/17枚转移,伴4枚癌结节),因术后不能耐受静脉化疗,予内分泌治疗。1例行乳房肿瘤切除术及腋窝淋巴结活检术,2个月后因肺间质病死亡。结论 女性皮肌炎患者易伴发乳腺恶性肿瘤且预后差,对明确诊断为皮肌炎的女性患者有必要进行乳腺恶性肿瘤的筛选。
Objective To establish the overall diagnostic accuracy of the measurements of vascular endothelial growth factor (VEGF) for malignant ascites. Methods After a systematic review of current studies, sensitivity, specificity, and other measures of the value of ascites concentrations of VEGF in the diagnosis of malignant ascites were pooled by using random effects models. Qualified studies on evaluation of VEGF in diagnosis of malignant ascites in English and Chinese published from January 1990 to December 2009 were retrieved from The Cochrane Library, Cochrane Central Register of Controlled Trials, MEDLINE, EMbase, China National Knowledge Infrastructure (CNKI) databases, WanFang Data, and VIP Information. Two reviewers independently assessed the methodological quality of each study with the tool of QUADAS. Statistical analyses were performed by employing Meta-Disc 1.4 software. Meta-analyses of the reported sensitivity and specificity of each study and Summary Receiver Operating Characteristic (SROC) curve were performed. Results Seven studies met the inclusion criteria for the analysis. After testing the heterogeneity of the included studies, a random effect model was selected to calculate the pool weighted sensitivity and specificity with 95% confidence interval: the sensitivity was 0.81 (95%CI 0.75 to 0.85), the specificity was 0.90 (95%CI 0.86 to 0.94), the DOR was 50.45 (95%CI 28.37 to 89.73), and the AUC of SROC was 0.9507 (SE=0.013 0). The subgroups were analyzed to identify the sources of heterogeneity according to race and agent sources. There was homogeneity among the three studies with agents from Ramp;D company (χ2=0.05, P=0.9750; I2=0.0%), and the AUC of SROC were 0.9675 (SE=0.016 7). Conclusion VEGF has a highly accurate sensitivity and specificity with a b ROC curve, which makes it a new marker to differentiate malignant ascites from the benign.
Malignant melanoma is a kind of highly malignant tumor, which mainly occurs in the skin, mucous membrane, and rarely in the breast. Here we reported a case of malignant melanoma in the chest wall skin with mammary metastasis. A sizable pigment spot on the skin of the thoracic region was found at the patient’s birth, existing for 50 years with quite atypical clinical manifestation. A nodule at 12 o’clock of the left breast was found by ultrasound four months ago, who was mistaken for a fibroadenoma. As a result, the patient received a minimally invasive excision of the breast lesion, after which the pathological report suggested malignant melanoma. By sharing this case, we aimed to discuss the diagnosis and treatment of this kind of atypical malignant melanoma in detail and provide some clinical experience.
目的了解甲状腺原发性恶性淋巴瘤的特点，探讨其诊治方法。方法回顾分析我院收治的7例甲状腺原发性恶性淋巴瘤患者的临床表现，血清抗甲状腺球蛋白抗体（TGA）,抗甲状腺微粒体抗体（TMA），B超，核素扫描，病理组织学及免疫组织化学染色特点。结果7例患者均行手术切除和术后化疗，病理石蜡切片证实为甲状腺原发性恶性淋巴瘤，免疫组化染色显示白细胞共同抗原阳性，细胞角蛋白阴性，支持本诊断。治疗后随访4个月～11年患者均生存。结论病理检查是明确诊断的可靠依据，手术应尽可能切除肿瘤，术后予以化疗，治疗效果较为满意。