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1.
为探讨前列腺偶发癌早期诊断的有效指标,对11例前列腺偶发癌和20例前列腺增生症(BPH)患者前列腺特异性抗原密度(DPSA)进行了检测。结果前列腺偶发癌DPSA平均值为0.15±0.13ng/(ml·cm3),BPH为0.07±0.06ng/(ml·cm3),两者有非常显著性差异(P<0.01)。11例DPSA>0.1ng/(ml·cm3)者,9例为前列腺偶发癌;20例DPSA<0.1ng/(ml·cm3)者,18例为BPH。而有9例前列腺偶发癌前列腺特异性抗原(PSA)<10.0ng/ml,有12例BPH者PSA>2.8ng/ml。认为当患者血清PSA轻、中度增高或正常时,DPSA可作为前列腺偶发癌早期诊断的有效指标。  相似文献   

2.
对14例血清前列腺特异性抗原(PSA)值>10ng/ml的良性前列腺增生症(BPH)患者(BPH组)及12例前列腺癌(PC)患者(PC组)进行了术前PSA及前列腺特异性抗原密度(DPSA)测定。结果BPH织PSA值为29.61±15.89ng/ml,DPSA值为0.60±0.36;PC组PSA值为85.89±53.76ng/ml,DPSA值为1.93±1.31,两组间PSA及DPSA。均有统计学差异(P<0.002)。认为当血清PSA力10ng/ml时.PSA几乎不能区分BPH和PC,而DPSA以0.7为标准值时,其诊断价值则明显优于PSA。同时分析厂造成BPH者PSA值>10ng/ml的可能原因。  相似文献   

3.
目的:建立上海市BPH人群的血清总前列腺特异抗原(T-PSA)的各年龄段特异性的参考值范围。方法:收集2006年12月-2008年4月上海交通大学附属第一人民医院BPH及可疑前列腺癌的4185例上海患者的血清T—PSA值及游离PSA(F—PSA)值。所有患者均有国际前列腺症状评分(I-PSS)、B超检查及直肠指诊。采用单因素直线回归分析方法分析患者T—PSA、F-PSA及F/T比值与年龄的关系。结果:4110例BPH患者血清T—PSA及F-PSA与年龄呈正相关(r=0.28,P〈0.0001及r=0.28,Pd0.0001),F/T比值与年龄呈负相关(r=-0.05,P=0.0005);上海市人群T—PSA值的年龄特异性分布大致为:40~49岁者为0~2.2ng/ml,50~59岁者为O~3.4ng/ml,60~69岁者为0~5.5ng/ml,70~79岁者为O~6.7ng/ml,80~89岁者为O~8.4ng/ml,90~99岁者为0~9.4ng/ml。上海市BPH人群较北京市BPH人群各年龄段特异性T-PSA值高,差异有显著统计学意义(t=4.63,P=0.01);较西安市健康人群高,差异有显著统计学意义(t=3.42,P=0.04);较黑人社区人群低,差异有显著统计学意义(t=-0.62,P=0.0085)。结论:上海市BPH患者血清T—PSA和F-PSA水平与年龄呈正相关,而F/T比值与年龄呈负相关。血清T—PSA的年龄特异性分布有地区及种族差异。  相似文献   

4.
目的探讨血清前列腺特异性抗原(sPSA)与尿前列腺特异性抗原(uPSA)比值(s/uPSA)对血清PSA处于诊断“灰区”—sPSA于4.0~10.0ng/ml(放射免疫法范围)前列腺癌的诊断价值。方法选择血清PSA(sPSA)于诊断“灰区”的共191例前列腺疾病患者,采用放射免疫方法检测其尿PSA(uPSA)水平,根据前列腺活检结果分为前列腺癌组(PCa组,n=76)和良性前列腺增生症组(BPH组,n=115),比较两组s/uPSA比值以及两组间sPSA和s/uPSA比值的受试者运算特性曲线(ROC)面积。结果BPH组与PCa组的sPSA分别为(5.20±1.09)ng/ml和(6.41±2.12)ng/ml,uPSA分别(3.57±0.97)ng/ml和(2.17±0.61)ng/ml,sPSA和uPSA在BPH组与PCa组两者间差别均无统计学意义(t=0.91,t=1.24,P〉0.05);BPH组与PCa组的s/uPSA分别为(2.32±0.61)和(4.13±1.09),PCa组s/uPSA比值明显高于BPH组,差别具有统计学意义(t=4.17,P〈O.01)。s/uPSA比值和sPSA的ROC曲线下面积分别为0.836和0.703。在保持95%敏感性时,s/uPSA比值和sPSA的特异性分别为77.1%和39.6%。结论在血清PSA值4.0~10.0ng/ml范围内,s/uPSA比值较sPSA更好地检出前列腺癌:在保持同一敏感性时,s/uPSA较sPSA具有更高的特异性。  相似文献   

5.
本研究采用10点、8点、6点前列腺穿刺法与经典的6点穿刺法在前列腺癌诊断中的作用进行比较。2001年2月至2004年7月,503名直肠指诊异常和(或)PSA水平>2.5ng/ml的患者入选,中位年龄63岁,中位PSA值为7.4ng/ml。患者穿刺前均行经直肠超声检查,测定前列腺体积,按照体积分为14.9~35.0ml,35.1~50.0ml,50.1~65.0ml及65.1~150.0ml 4组。前列腺穿刺采用10点组合穿刺方案,同时对超声检查可疑病变处行补充穿刺。  相似文献   

6.
近期的一些研究结果显示,PSA〈4.0ng/ml的前列腺活检患者中前列腺癌检出率为15.2%,而且有证据显示在这些前列腺癌中许多具有临床意义。因此一些研究结果提示,在低PSA水平时也应进行前列腺活检,特别是年龄〈60岁的男性。本研究旨在评价年龄〉60岁的男性中低PSA水平时接受前列腺活检的意义。研究对象来自前列腺癌筛查研究,共有782例连续性病例因PSA水平〉2.5ng/ml或者直肠指诊异常而接受6针前列腺穿刺活检。穿刺病理结果根据患者年龄进行分组分析。结果共127例(16.2%)穿刺病理诊断为前列腺癌,肿瘤均为临床局限性前列腺癌。年龄〈60岁组穿刺阳性率为19%(67/362),60~69岁组为16%(44/277),〉70岁组为11%(16/143)。穿刺阳性率随年龄增长有降低趋势(P=0.05)。患者的PSA速率、肿瘤分期、Gleason评分以及肿瘤体积差异无统计学意义。  相似文献   

7.
血清PSA与良性前列腺增生临床病理的相关性研究   总被引:7,自引:0,他引:7  
目的分析血清前列腺特异性抗原(PSA)与良性前列腺增生(BPH)临床病理的相关性。方法回顾性分析561例有下尿路梗阻症状经手术治疗后病理诊断为BPH的患者资料。年龄(68.3±6.3)岁,术前国际前列腺症状评分(IPSS)21.1±7.4,生活质量评分(QoL)4.5±0.8,尿流率(7.3±3.3)ml/s,前列腺体积(69.8±36.8)ml,剩余尿(81.9±105.8)ml,血清PSA值<4 ng/ml者247例(44.0%),4~10 ng/ml者223例(39.8%)、>10 ng/ml者91例(16.2%)。结果血清PSA水平与患者年龄、IPSS、QoL、最大尿流率、剩余尿量无明显相关性(r=0.08、0.03、0.06、0.04、0.09,P>0.05),而与前列腺体积呈显著正相关(r=0.42,p<0.01);血清PSA水平升高与前列腺体积(F=93.45,P<0.05)及尿潴留发生率(x~2=59.1,P<0.01)间有统计学意义。BPH组织标本中以腺体增生为主(x~2=16.14,P<0.01)或伴有梗死病灶(x~2=36.06,P<0.01)患者的血清PSA水平明显升高。结论50%以上接受手术治疗的BPH患者血清PSA水平升高,前列腺体积增大、尿潴留以及表现为腺体增生为主或伴有梗死灶的BPH是血清PSA水平升高的主要原因。  相似文献   

8.
目的:探讨血中前列腺特异性抗原(PSA)浓度与前列腺体积的比值(PSA密度,PSAD)对PSA浓度在41~10μg/L之间、肛指检查(DRE)正常的良性前列腺增生(BPH)和前列腺癌(PC)鉴别诊断的意义、方法:对PSA浓度在4~10μg/L、DRE正常的12例PC和14例BPH病人的PSAD进行回顾性分析。PSAD为PSA浓度与前列腺体积的比值。结果:PC组和BPH组的PSA分别是6.20μg/L和6.16μg/L.两组相比差异不显著(P>0.05).而PSAD分别是0.29和0.16.两组相比差异显著(P<0.01)、当取PSAD阈值为M>0.20时.鉴别诊断的准确性最高.为76.92%.敏感性和特异性分别为75.00%和78.57%。结论:PSAD有助于鉴别PSA在4~10μg/L之间、DRE正常的BPH和PC.具有较高的敏感性和特异性,可减少不必要的活检,推荐使用的PSAD闭值为>0.20。  相似文献   

9.
我院从1995年2月以来应用Nd:YAG激光治疗仪治疗前列腺增生30例,现报告如下。1资料与方法1.1临床资料本组30例,年龄54~80岁,平均64岁。术前经B超测定前列腺重量为32.5~183.0g,平均71·ig。其中急性尿储留保留尿管7例,膀航造播1例,并发膀眈结石2例。25例并发有冠心病或肺气肿、慢性气管炎等疾病患者心电图均不正常。29例术前检查前列腺特异性抗原(PSA)和血前列腺酸性磷酸酶(PAP)均正常,另1例PSA高(20ng/ml),后经前列腺穿刺活俭病理检查证实为前列腺增生。1.2仪器设备采用中国科学院电子所生产的ZJWD-100型激光…  相似文献   

10.
采用RIA法对745例非前列腺癌人员血清前列腺特异性抗原(PSA)进行检测,结果56例女性组中有11例检测到PSA,检出率为19%,平均检测值为0.61±0.34ng/ml;309例非前列腺疾病组血清PSA随年龄升高而增加,其中30岁和60岁时有两个升高速度较快的过程,这与前列腺生长情况是平行的;103例慢性前列腺炎组和277例良性前列腺增生组的PSA值变化情况与非前列腺疾病组情况相似,但将此两组PSA与非前列腺疾病组在同年龄段进行比较,以60岁年龄段和70岁年龄段为更显著。另外,笔者还观察了部分手术对血清PSA的影响,发现非前列腺手术血清PSA会下降。认为本研究是一个较大样本的血清PSA检测,年龄范围较广,有一定的临床参考价值。  相似文献   

11.
We describe an unusual case of a prostatic adenocarcinoma presenting with a ureteric stricture secondary to a discrete metastatic lesion. A 76-year-old man presented with a short history of right loin pain. Initial examination was unremarkable, digital rectal examination was normal and prostate specific antigen was within normal range. Computed tomography showed right hydronephrosis and a distal ureteric stricture. A distal ureteric transitional cell carcinoma was thought to be most likely. A nephroureterectomy was carried out and histology revealed a skipped lesion of a metastatic prostate adenocarcinoma. Metastatic lesions to the ureters due to prostate cancer are rare. It was believed to be secondary to a transitional cell carcinoma as there was no evidence initially to suggest prostatic disease as the cause. A prostatic adenocarcinoma should be considered in the differential diagnosis of any lesions in the ureter believed to have a malignant origin.  相似文献   

12.

Purpose

To describe and test a quantitative system for designating prostate tumor location on magnetic resonance imaging (MRI) and prostatectomy. A system for describing tumor location will facilitate research correlating MRI and pathology.

Materials and methods

The prostate cylindrical coordinate (PCC) system was developed for locating prostate tumors using 3 coordinate values. The 3 coordinate values include the angular location centered on the urethra, the radial distance to the periphery and the long axis from apex to base. To evaluate this system, 26 tumors were identified where the prostate cancer was noted by both the radiologist and the pathologist. PCC values were assigned independently to MRI lesions and corresponding tumors. Intraclass correlation coefficient (ICC) was calculated to assess agreement between PCC assigned using MRI and pathology. The coordinates were used to calculate the average distance between the centers of the same lesion measured by MRI and pathology.

Results

Each of the cylindrical coordinates assigned by MRI and pathology were compared and there was no significant difference. The agreement was excellent, and the ICC was 0.70 (P<0.001) for the angular coordinate, 0.81 (P<0.001) for the radial distance, and 0.94 (P<0.001) for the long axis. Compared to pathology, lesions on MRI were significantly larger (1.17 vs. 0.86 cm2, P<0.001) but there was strong agreement between the measurements on MRI and pathology (ICC = 0.89, P<0.001). The distance between the centers of the lesions measured on MRI and pathology was small (10.13 mm, s.d. = 8.70).

Conclusions

The PCC system quantitatively characterizes lesions seen on MRI and prostatectomy pathology with good agreement.  相似文献   

13.
血清PSA值和前列腺结节指导前列腺穿刺活检的临床意义   总被引:6,自引:0,他引:6  
目的 探讨血清PSA浓度变化与前列腺癌及其骨转移的相关性。方法 对93例直肠指诊异常及血清PSA〉4ng/ml的患者,行直脾性B超引志下前列腺穿刺活检;用99mTc-MDP行全身骨扫描判断有无骨。结果 93例中前列腺活检阳性者60例,其中26例扫描阳性;随血清PSA浓度升高,前列腺阳性活检率及其远处骨转移阳性率升高。 血清PSA升高与前列腺癌及其骨转移的发生率呈正相关。  相似文献   

14.
目的 :探讨前列腺按摩治疗精液迟缓液化症的临床意义。方法 :对 48例精液迟缓液化症患者和 30例精液液化正常者分别测定其精液前列腺特异抗原 (PSA)含量 ;对精液迟缓液化症患者前列腺按摩前后测定其精液 PSA浓度 ;对 16例精液迟缓液化症患者 ,前列腺按摩前后行性交后试验 ,取其配偶宫颈粘液显微镜下观察活精子数。结果 :精液迟缓液化症患者精液 PSA含量明显低于液化正常组 (P <0 .0 1) ;前列腺按摩后精液 PSA浓度明显升高 (P <0 .0 5 ) ;按摩后其配偶宫颈粘液每高倍视野活精子数明显增加。结论 :在女方围排卵期对男方行前列腺按摩治疗精液迟缓液化症 ,方法简便 ,效果可靠 ,实用性强。  相似文献   

15.
目的:探讨人前列腺癌组织中前列腺干细胞抗原(PSCA)蛋白和mRNA的表达状况及其相关性.方法:采用免疫组化和原位杂交方法同步检测48例前列腺癌组织中PSCA蛋白和mRNA的表达,并进一步比较其表达水平之间的相关性.结果:免疫组化和原位杂交检测显示:42例(87.5%)的PSCA蛋白阳染区域所见与其mRNA阳染区域相同,其中的37例的蛋白和mRNA表达水平(评分值)均一致,其余11例的PSCA蛋白表达水平与其mRNA表达水平比较,均有不同程度的降低.结论:PSCA蛋白和mRNA在人前列腺癌组织中的表达水平具有很高的一致性,PSCA蛋白表达与PSCA基因的转录密切相关.  相似文献   

16.
前列腺移行带特异抗原密度检测前列腺癌的临床观察   总被引:2,自引:0,他引:2  
目的 评价前列腺移行带特异抗原密度 (PSAT)检测前列腺癌 (PCa)的临床价值。 方法 用酶免法测定 30例PCa及 88例良性前列腺增生症 (BPH)患者血清PSA水平 ,用经直肠前列腺B超测定患者总前列腺体积及移行带体积 ,并计算PSA密度 (PSAD)及PSAT值。 结果 PSA在 4~ 10ng/ml时 ,PCa和BPH患者PSAD值分别为 0 .2 6± 0 .11、0 .13± 0 .0 6 ,两组间相比差别具有显著性意义 (P <0 .0 1) ;PSAT值则分别为 1.0 4± 0 .70、0 .2 1± 0 .13 ,两组间相比差别具有显著性意义 (P <0 .0 1)。若选择PSAD =0 .15作为判断患者是否需穿刺活检的标准 ,将有 2 7%的PCa漏诊 ,而若选择PSAT =0 .35作为判断患者是否需穿刺活检的标准 ,只有 9%的PCa漏诊 (P <0 .0 1)。 结论 PSAT是一种新的有效的检测PCa的方法 ,PSA在 4~ 10ng/ml范围时 ,用PSAT检测PCa较用PSAD更精确。  相似文献   

17.
The Prostate CAncer gene 3 (PCA3 or DD3) is a promising urinary, gene-based, prostate cancer biomarker. This specific non-coding mRNA sequence is highly over expressed in more than 95% of primary prostate tumors. The feasibility of a PCA3 gene-based molecular assay for the detection of prostate cancer (PCa) cells in the urine has been demonstrated, and, recently, a quantitative PCA3 urine test with the potential for general use in clinical settings has been developed. Thus, current data from the literature are now available which demonstrate the superiority of the PCA3 score over prostate-specific antigen (PSA) level, at least in terms of predictive value and specificity but with a slightly lower sensitivity. These results are particularly encouraging for the specific population of patients who initially have a negative biopsy result, as using a PCA3 assay would allow them to avoid unnecessary repeated biopsies. Finally, this review discusses the limited data available that demonstrates a correlation between PCA3 score and tumor volume, extra capsular extension and the ability to distinguish indolent from significant cancer.  相似文献   

18.
目的:探讨前列腺体积及前列腺特异抗原密度与前列腺穿刺阳性率的关系并分析其原因.方法:选择2004~2007年间于我院行超声引导下经直肠前列腺系统8针穿刺的患者192例.以前列腺体积<30 ml、30~50 ml、>50 ml为界,计算并比较各组问前列腺穿刺的阳性率及PSAD≥0.15时,前列腺穿刺阳性率的变化.结果:前列腺体积与前列腺穿刺阳性率呈负相关(r=0.237,P<0.01),前列腺体积<30 ml组,穿刺阳性率为39.1%(18/46);30~50 ml组,阳性率为21.7%(13/60);>50 ml组,阳性率为9.3%(8/86).各组间差异有统计学意义(P<0.01,P<0.05).前列腺特异抗原密度≥0.15时,三组间阳性率差异仍有统计学意义(P<0.01).但三组漏诊率分别为11.1%(2/18)、30.8%(4/13)、62.5%(5/8),差异有统计学意义(P<0.01).结论:前列腺体积是前列腺穿刺阳性率的独立影响因素,应根据前列腺体积制定穿刺方案.  相似文献   

19.
目的 探讨前列腺特异性抗原(PSA)与前列腺结节增生、Ⅳ型前列腺炎及前列腺癌之间的关系,探讨PSA升高的病理学基础.方法 有完整临床病理资料的前列腺疾病504例患者,均无前列腺癌和穿刺活检史,均行PSA、全身骨扫描、MRI和前列腺穿刺活检.直肠B超引导下以18G自动穿刺活检枪行双侧叶6-13点法前列腺穿刺活检.对患者穿刺的病理标本按前列腺结节增生、前列腺癌以及Ⅳ型前列腺炎病理诊断标准进行评价.结果 504例患者经病理证实前列腺癌185例(37%),Ⅳ型前列腺炎109例(21%),前列腺增生210例(42%).3组总PSA(t-PSA)分别为27.6(0.4~7116)、10.6(0.2~168)和9.2(0.3~60)ng/ml,3组间比较差异有统计学意义(P<0.01);f-PSA分别为3.5(0.1~3356)、1.7(0.1~42)和1.5(0.06~15.8)ng/ml,3组间比较差异有统计学意义(P<0.001);f/t-PSA分别为0.14(0<0.94)、0.17(0.04~0.91)和0.16(0.02~0.75).3组间比较差异有统计学意义(P=0.019);3组间年龄、B超、直肠指诊结果比较差异无统计学意义(P>0.05).前列腺癌分级与f-PSA(r=0.33,P<0.001)、t-PSA(r=0.27,P<0.001),f/t-PSA(r=0.22,P=0.003)具有显著相关性;多元线性回归分析发现前列腺癌分级与f-PSA(t=-2.34,P=0.02),t-PSA(t=2.77,P=0.006),f/t-PSA(t=3.97,P<0.001)具有显著相关性.前列腺癌临床分期间f-PSA和t-PSA差异有统计学意义(P<0.001).210例前列腺增生患者若按腺体增生为主和间质增生为主2类比较,t-PSA和f-PSA差异均有统计学意义(P<0.05).多元线性回归分析发现t-PSA足前列腺增生病理结节类型最相关的指标,t-PSA≥2.5 ng/ml,确定腺体增生为主型前列腺增生的敏感性为96%,特异性为20%(P<0.05).Ⅳ型前列腺炎109例和前列腺增生210例,2组间比较f-PSA,t-PSA,f/t-PSA差异有统计学意义(P<0.05).通过ROC曲线确定前列腺癌敏感指标的界值:f-PSA≥0.85 ng/ml,t-PSA≥4 ng/ml和f/t-PSA≤0.16(P<0.05).结论 血清PSA升高的病理基础为任何破坏前列腺上皮血屏障的病变;任何形成前列腺上皮增生,分泌更多PSA的病变;其中以破坏前列腺上皮血屏障最重要.  相似文献   

20.
Previous studies have detected high levels of matrix metalloproteinases (MMPs) in metastatic prostate cancer. In this study, we recruited 40 patients with prostate cancer (PCa): 20 presented organ-confined carcinoma and 20 had metastatic cancer. We also recruited 40 subjects for control groups, 20 with benign prostate hyperplasia (BPH) and 20 healthy males with similar characteristics. All of the patients were monitored at the beginning (time 0) and after 90 days. We analyzed the plasma concentrations of MMP-2, MMP-9, MMP-13, TIMP-1 and the enzyme activity of MMP-2 and MMP-9,using specific ELISA tests. The plasma concentrations of MMP-2, MMP-9 and MMP-13 were higher in PCa patients with metastasis than in the other groups, and in these patients decreased markedly after therapy began. For MMP-2 and MMP-9, greater differences were observed in enzyme activity than in plasma concentrations. TIMP-1 was reduced in PCa patients with metastasis, even if the intergroup differences were not statistically significant. Our results suggest that the plasma concentration and activity of MMPs, in association with PSA determination, could play a role in diagnosis, monitoring therapy and evaluating malignant progression in PCa.  相似文献   

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