显微神经外科技术及翼点入路在鞍区肿瘤手术的应用

目的：总结98例鞍区肿瘤患者经翼点入路显微手术治疗及翼点入路应用体会。方法：按照翼点入路各项操作步骤行鞍区肿瘤切除98例，介绍了操作方法并讨论显微神经外科技术在鞍区肿瘤手术中的应用，及不同部位肿瘤作相应手术操作调整的方法。结果：鞍区肿瘤应用翼点入路进行显微手术操作可良好显露鞍区及肿瘤各显微解剖结构以及手术操作平台，使其肿瘤全切率及患者预后得到明显提高。结论：显微神经外科技术及翼点入路手术操作的掌握和熟练程度的提高是显微神经外科技术的关键及获得良好手术效果的基础。     

中华口腔医学会口腔颌面外科专委会第二届全国口腔颌面肿瘤学术研讨会纪要

经中华口腔医学会批准，由口腔颌面外科专委会肿瘤学组主办、青岛大学医学院承办的第二届全国口腔颌面肿瘤学术研讨会于2003年8月23日～8月27日在山东省青岛市举行。会议受到了中华口腔医学会和口腔颌面外科专委会的指导帮助和与会代表的大力支持。鉴于受非典因素影响及本年度学术会议较多的特点，本次会议采取控制规模、专题讨论的形式，集中对当前口     

人口腔鳞癌演变过程中HLA-DR表达改变的研究

目的 :观察HLA DR在口腔鳞癌发生、发展过程中表达的改变并探讨其临床意义。方法 :采用免疫组织化学的方法检测了 2 6例正常口腔黏膜、8例口腔黏膜白斑、3 2例口腔鳞癌原发灶及 15例颈淋巴结转移灶标本内HLA DR的表达。结果 :口腔鳞癌原发灶与正常口腔黏膜HLA DR的表达存在有显著性差异 (P <0 .0 5) ,其余各组间未见有此差异 ;鳞癌原发灶HLA DR的表达除与局部淋巴细胞浸润有显著性关系外与其余各临床病理资料间均无明显关系。结论 :HLA DR在口腔鳞癌细胞中存在有表达异常增高的现象但并不能作为独立的预后判断因素     

动脉粥样硬化的分子影像学

近年来分子影像学进展迅速，在心血管系统已经开展了一些工作。综述分子影像学的一些基本原则以及在动脉粥样硬化中的应用潜力。     

肝动脉的CT血管造影

1995年Winter等^[1]用CT血管造影(CT angiography，CTA)对肝脏移植前后肝动脉进行评价，认为CTA与传统血管造影同样准确，且无创价廉。多层螺旋CT(multislice computed tomography，MSCT)空间分辨率和时间分辨率明显提高，对比剂量较单层螺旋CT节省30％～50％，能进行多期相血管扫描，多种后处理技术可以获得更高质量的三维图像，这些优势使得进行肝脏CTA不仅成为可能，而且具有可靠的价值^[2-4]。本文着重介绍肝脏动脉系统CTA技术及其临床应用价值。     

重组人白细胞介素6对SW872脂肪细胞增殖和凋亡的影响

目的　探讨白细胞介素 6(IL 6)对SW872脂肪细胞增殖及凋亡的影响。方法　体外培养SW872脂肪细胞 ,0 .6mmol/L油酸诱导SW872前脂肪细胞分化 ,化学比色法检测细胞内三酰甘油的总量 ;油红O染色观察细胞内脂肪的聚积 ;MTT法检测不同浓度IL 6对SW872前脂肪细胞增殖活力的影响 ;流式细胞仪分析IL 6对SW872成熟脂肪细胞凋亡的影响。结果　 0 .6mmol/L油酸刺激 72h ,几乎 10 0 %SW872前脂肪细胞分化为成熟的脂肪细胞 ,细胞内三酰甘油的含量明显增加 ,油红O染色胞浆内可见丰富的脂滴 ;5 μg/LIL 6对SW872前脂肪细胞的增殖没有影响 ,10～ 5 0 μg/LIL 6明显抑制SW872前脂肪细胞的增殖 ;IL 6对SW872成熟脂肪细胞的凋亡无影响。结论　IL 6能明显抑制SW872前脂肪细胞的增殖 ,其抑制效应呈剂量依赖性 ,表明IL 6可能与肥胖有关 ,高剂量IL 6可降低肥胖的程度。     

双能量CT头颅血管成像的影像质量、辐射剂量及初步临床应用

Objective To assess the clinical value of dual-energy intracranial CT angiography (CTA).Methods Forty-one patients suspected of intracranial vascular diseases underwent dual-energy intracranial CT angiography, and 41 patients who underwent conventional subtraction CT were enrolled as the control group.Image quality of intracranial and skull base vessels and radiation dose between dual-energy CTA and conventional subtraction CTA were compared using two independent sample nonparametrie test and independent-samples t test, respectively.Prevalence and size of lesions detected by dual-energy CTA and digital subtraction CTA were compared using paired-samples t test and Spearman correlative analysis. Results The percentage of image quality scored 5 was 70.7% (29/41) for dual-energy CTA and 75.6% (31/41) for conventional subtraction CTA.There was no significant difference between the two groups(Z= -0.455, P=0.650).Image quality of vessels at the skull base in conventional subtraction CTA was superior to that in dual-energy CTA, especially for the petrosal and syphon segment (Z=-4.087, P= 0.000).Radiation exposure of dual energy CTA and conventional CTA were (396.54±17.43) and (1090.95±114.29) mGy · cm respectively.Radiation exposure was decreased by 64% (t=-38.52, P=0.000) by dual energy CTA compared with conventional subtraction CTA.Out of the 41 patients,19 patients were diagnosed as intracranial aneurysm, 2 patients as arteriovenous malformation (AVM), 3 patients with Moya-moya's disease, and the remaining 17 patients with negative results.Nine patients with intracranial aneurysm, 2 patients with AVM, 3 patients with Moya-moya's disease, and 2 patients with negative findings underwent DSA or operation, with concordant findings from both techniques.Diameter of aneurysm neck, long axis and minor axis by dual-energy CTA was (2.90±1.61), (5.23±1.68) and (3.83±1.69) nun, respectively; Diameter of aneurysm neck, long axis and minor axis by DSA was (2.95±1.71), (5.10±1.60) ,(3.83±1.65) nan,respectively.There was no significant difference for the diameters of aneurysm between dual energy CTA and DSA ((t=-0.734,1.936,0.12.5 respectively, P=0.482,0.085,0.903 respectively), and good correlation was found between diameter measurements using the two techniques(r=0.964,0.976,0.973, respectively, all P=0.000) Conclusions Compared with conventional subtraction CTA, dual energy CTA has good image quality for intracranial vessels; however, image quality of the skull base vessels is worse, especially for the petrosal and syphon segment.Dual energy CTA has decreased radiation dose and a high diagnostic accuracy, being a practical imaging madality for diagnosis of intracranial vascular lesions.     

肝肿瘤的淋巴结清扫

淋巴结状态涉及肿瘤患者的预后，在肝肿瘤中区域性淋巴结清扫的作用仍不清楚。为此，作者分析意大利Bologna大学Sant Orsola医院外科和移植科于1999～2001年收治的120例原发和继发肝肿瘤病例。均行肿瘤切除和区域性淋巴结清扫，7例因未能彻底根治不予统计在内，另10例系肝外胆管肿瘤也剔除在外。在余下的103例中，男55例、女48例，平均年龄     

骨外软骨母细胞瘤1例

软骨母细胞瘤为一种少见的起源于软骨组织的原发性肿瘤。骨外软骨母细胞瘤较罕见。我院收治足底软组织内软骨母细胞瘤1例,现报告如下。 病例报告 患者女性,60岁。于24年前发现左足底前部一肿块,较长时间走路后局部轻微疼痛,来经任何检查及治疗,肿块渐增大。1983年9月8日以“足底纤维瘤”住院治疗。体检:左足第2、3趾轻度分开,足底2、3跖骨间轻度肿大,约2.5×2.5cm、其表面皮肤角化,肿块无明显移动,质中等硬,边界