CEA、CA19-9与CA72-4用于诊断老年胃癌的临床价值研究

目的:探讨CEA、CA19-9以及CA72-4诊断老年胃癌的临床价值。方法:对192例经活检确诊为老年胃癌患者的血清CEA、CA19-9以及CA72-4水平进行分析,比较不同TNM分期老年胃癌患者的血清CEA、CA19-9以及CA72-4阳性率,并评价血清CEA、CA19-9以及CA72-4水平诊断老年胃癌的敏感性和特异性。结果:TNM 3期及4期的胃癌患者CEA以及CA19-9阳性率明显高于1期及2期胃癌患者,而TNM1-4期的胃癌患者CA72-4的阳性率都明显高于CEA以及CA19-9。以6.5 ng/m L、30U/m L以及4 ng/m L分别作为CEA、CA19-9以及CA72-4的上限临界值,其诊断老年患者的胃癌的敏感性分别为15.6%、19.3%以及29.2%,特异性分别为98.9%、97.2%以及98.0%,曲线下面积分别为0.59、0.62以及0.66。结论:CEA、CA19-9以及CA72-4对于诊断老年胃癌都有较好的特异性,但敏感性一般,尤其对于早期胃癌,CEA及CA19-9敏感性较差,CA72-4敏感性要优于二者。     

紫杉醇与地西他滨对晚期胃癌患者血清CEA、CA19-9 及CA72-4水平的影响

目的：探讨紫杉醇联合地西他滨对晚期胃癌患者血清癌胚抗原(CEA)、糖类抗原19-9(CA19-9)、糖类抗原72-4(CA72-4)水平 的影响。方法：收集2013 年10 月-2015 年1 月于我院住院治疗的晚期胃癌患者122 例,随机分为实验组和对照组。实验组患者给 予紫杉醇和地西他滨化疗,对照组患者给予紫杉醇和安慰剂化疗。观察并比较两组患者治疗前后卡氏积分、血常规、血尿素氮、肌 酐、转氨酶含量以及血清CA199、CEA及CA724 水平的变化情况。结果：治疗后,两组患者的卡氏积分均较治疗前明显升高,血清 CEA、CA19-9、CA72-4水平均较治疗前显著降低,且实验组的卡氏积分显著高于对照组,血清CEA、CA19-9、CA72-4 水平明显低 于对照组,差异均具有统计学意义（P＜0.05）。治疗前后,两组患者的白细胞、血红蛋白及血小板水平比较均无统计学差异（P＞ 0.05）。结论：紫杉醇联合地西他滨能有效降低晚期胃癌患者血清CEA、CA19-9、CA72-4 水平,并提高患者的生存质量,且安全性 较好。     

胃癌患者血清CA125、CA724、CEA、CA199水平的表达及与临床病理特征的关系研究

目的:研究胃癌患者血清糖链抗原125(CA125)、糖链抗原724(CA724)、癌胚抗原(CEA)、糖链抗原199(CA199)水平的表达及与临床病理特征的关系。方法:选取2016年5月-2017年8月我院收治的胃癌患者94例记为胃癌组,胃部良性病变患者82例记为良性病变组,另取同期于我院接受体检的健康志愿者80例记为对照组。分别测定三组受试者血清CA125、CA724、CEA、CA199水平,并分析上述指标与胃癌患者临床病理特征的关系,并观察胃癌患者各指标单独检测和联合检测的阳性率。结果:三组受试者血清CA125、CA724、CEA、CA199水平整体比较差异有统计学意义(P0.05),胃癌组、良性病变组、对照组的血清CA125、CA724、CEA、CA199水平呈逐渐降低趋势,两两对比差异有统计学意义(P0.05)。不同性别的胃癌患者CA125、CA724、CEA、CA199水平比较差异无统计学意义(P0.05),年龄60岁、TNM分期为Ⅲ-Ⅳ期、肿瘤大小≥5 cm2的胃癌患者CA125、CA724、CEA、CA199水平均高于年龄≤60岁、TNM分期为Ⅰ-Ⅱ期、肿瘤大小5 cm2的胃癌患者,差异有统计学意义(P0.05)。联合检测的胃癌阳性率高于CA125、CA724、CEA、CA199单独检测,且CA724单独检测高于CA125、CEA、CA199单独检测,差异有统计学意义(P0.05)。结论:胃癌患者血清CA125、CA724、CEA、CA199水平较高,与患者的年龄、TNM分期、肿瘤大小等因素有关,且联合检测的胃癌检出率较高,可为胃癌的早期诊断提供指导作用。     

CA19-9及CA72-4联合检测在胰腺癌诊断中的应用价值

目的:探究联合检测血清糖类抗原(CA)19-9和CA72-4水平在胰腺癌诊断中的应用价值。方法:回顾性选取我院2016年1月～2017年12月收治的72例胰腺癌患者作为胰腺癌组,以同期住院的68例良性胰腺病患者作为良性胰腺疾病组,同时纳入67例健康体检者作为对照组。检测三组人群血清CA19-9和CA72-4水平,采用受试者工作特征曲线(ROC曲线)及曲线下面积(AUC)分析评估各单项检测指标及联合检测指标对胰腺癌特异性诊断的价值。结果:胰腺癌组患者血清CA19-9和CA72-4水平分别为(137.69±25.32)U/mL和(6.96±1.25)U/mL,显著高于良性胰腺疾病组和对照组(P0.05)。血清CA19-9和CA72-4联合检测诊断胰腺癌的ROC曲线AUC高于其单独检测(P0.05),CA19-9和CA72-4的最佳临界值分别为86.94 U/m L和4.23 U/m L,此时联合检测诊断胰腺癌的敏感性为94.7%,特异性为95.2%。结论:联合检测血清CA19-9和CA72-4诊断胰腺癌的临床价值明显优于其单独检测。     

血清CEA、CA19-9联合CRP在消化道恶性肿瘤的诊断价值分析

摘要 目的：探讨与分析血清CEA、CA19-9联合CRP在消化道恶性肿瘤的诊断价值。方法：2019年8月到2022年5月选择在本院诊治的消化道恶性肿瘤患者150例作为消化道恶性肿瘤组,同期选择在本院体检的健康人群150例作为健康组。采集两组人群的血清癌胚抗原（CEA）、糖类抗原19-9（CA19-9）、C-反应蛋白（CRP）含量,调查患者的病理特征并判断诊断价值。结果：消化道恶性肿瘤组的血清CEA、CA19-9、CRP含量都高于健康组（P<0.05）。消化道恶性肿瘤组的CEA、CA19-9、CRP阳性率为54.7 %、58.7 %、60.7 %,高于健康组的3.3 %、4.0 %、4.7 %（P<0.05）。在消化道恶性肿瘤组中,不同组织学分化、临床分期、淋巴结转移患者的血清CEA、CA19-9、CRP含量对比有差异（P<0.05）。血清CEA、CA19-9联合CRP诊断为阳性113例,在健康组中诊断为阳性3例,血清CEA、CA19-9联合CRP在消化道恶性肿瘤的诊断敏感性与特异性分别为75.3 %（113/150）和98.0 %（147/150）。结论：消化道恶性肿瘤患者多伴随有血清CEA、CA19-9、CRP的高表达,病理特征与血清CEA、CA19-9、CRP含量存在相关性,血清CEA、CA19-9联合CRP在消化道恶性肿瘤的诊断敏感性与特异性都比较好。     

胃癌根治术后腹腔热灌注化疗对患者血清CEA、CA19-9水平及免疫功能的影响

目的:探讨胃癌根治术后腹腔灌注化疗对患者血清CEA(血清癌胚抗原,carcinoembryonic antigen)、CA19-9(糖链抗原19-9,carbohydrate antigen19-9)水平及免疫功能的影响。方法:回顾性2015年2月至2017年4月我院收治的胃癌患者临床资料,依据接受治疗方案不同分为全身静脉化疗组(对照组)和全身静脉化疗联合腹腔热灌注化疗组(观察组),每组各41例。检测和比较两组患者化疗前(治疗前)与化疗1个月后(治疗后)血清肿瘤标志物CEA、CA19-9与免疫功能指标水平的变化,治疗后毒副作用发生情况及治疗前后生活质量的改善情况。结果:治疗前,两组间血清CEA、CA19-9、CD3~+、CD4~+、CD8~+、CD4+/CD8~+水平比较差异均无统计学意义(P0.05);观察组治疗后血清CEA、CA19-9及CD8~+水平显著低于对照组,CD3~+、CD4~+、CD4~+/CD8~+水平显著高于对照组,差异有统计学意义(P0.05);两组骨髓抑制、恶心呕吐、腹痛腹泻及肠梗发生率比较差异均不显著无统计学意义(P=0.478,0.668,0.315,0.552);观察组生活质量改善总有效率为85.37%,显著高于对照组(70.73%,P=0.017)。结论:与单纯全身化疗相比,胃癌根治术后腹腔灌注化疗可更有效降低患者血清CEA、CA19-9水平,改善患者免疫功能,提高其生活质量,且安全性较高。     

HIF-1α、CEA和CA724水平检测诊断早期胃癌

为了探讨HIF-1α、CEA和CA724水平检测在诊断早期胃癌中的效果,本研究分别采用免疫组化法检测胃癌组、良性疾病组和正常组受检者的HIF-1α表达,采用化学发光微粒子免疫法检测受试者血清CEA和CA724水平,并分析单一肿瘤标志物检测及联合检测的灵敏性、特异性和准确性。研究结果表明:胃癌组HIF-1α、CEA和CA724的阳性率依次为81.50%、66.50%和63.00%,均显著高于良性疾病组和正常组(p0.05)。良性疾病组和正常组的HIF-1α、CEA和CA724的阳性率无统计学显著性(p0.05)。HIF-1α、CEA和CA724这3个检测指标联合诊断胃癌的灵敏性(85.30%)、特异性(90.10%)和准确性(87.70%)均显著高于单独诊断(p0.05)。在胃癌早期诊断中,采用单一肿瘤标志物容易造成误诊和漏诊,而采用多项肿瘤标志物联合检测胃癌可有效提高诊断的灵敏性、特异性和准确性。     

艾迪注射液联合化疗对卵巢癌患者血清HE4，CA125，CA19-9，AFP，CEA水平及T细胞亚群的影响

目的:探讨艾迪注射液联合化疗对卵巢癌患者血清人附睾蛋白4(HE4)、糖类抗原125(CA125)、糖类抗原19-9(CA19-9)、甲胎蛋白(AFP)、癌胚抗原(CEA)及T细胞亚群的影响。方法:选取我院2014年8月至2016年2月收治的78例卵巢癌患者,按照随机数表法将其分为观察组(n=39)和对照组(n=39),对照组患者给予化疗,观察组患者给予艾迪注射液联合化疗,比较两组患者的临床疗效、治疗前后血清HE4、CA125、CA19-9、AFP、CEA水平及T细胞亚群的变化。结果:治疗后,观察组的总有效率(94.87%)显著高于对照组(76.92%)(P0.05)。治疗后,两组患者血清HE4、CA125、CA19-9、AFP、CEA水平均较治疗前明显下降,且观察组显著低于对照组(P0.05)。治疗后,两组患者CD3~+、CD4~+、CD8~+较治疗前均显著降低,且观察组患者CD3~+、CD4~+、CD8~+低于对照组(P0.05)。结论:艾迪注射液联合化疗对卵巢癌治疗效果显著,能有效降低血清HE4、CA125、CA19-9、AFP、CEA水平并改善患者免疫功能。     

磁共振胰胆管成像联合血清CA125、CA19-9、CEA对良恶性梗阻性黄疸的诊断价值

摘要 目的：研究磁共振胰胆管成像（MRCP）联合血清糖类抗原125（CA125）、糖类抗原19-9（CA19-9）、癌胚抗原（CEA）对良恶性梗阻性黄疸的诊断价值。方法：将医院从2018年1月～2020年2月期间收治的90例良恶性梗阻性黄疸患者纳入研究。将其按照良恶性的差异分为良性梗阻性黄疸51例以及恶性梗阻性黄疸39例。分别对所有患者进行MRCP检测,并分析良恶性梗阻性黄疸MRCP影像学表现特征的差异。此外,采集所有患者清晨空腹静脉血,检测血清CA125、CA19-9、CEA水平并进行对比。通过受试者工作特征（ROC）曲线分析明确MRCP联合血清CA125、CA19-9、CEA对良恶性梗阻性黄疸的诊断价值。结果：恶性梗阻性黄疸部位为十二指肠乳头区人数占比明显高于良性梗阻性黄疸,而胰头上区、胰头区人数占比均明显低于良性梗阻性黄疸;且恶性梗阻性黄疸梗阻重度扩张人数占比明显高于良性梗阻性黄疸,而梗阻轻度扩张人数占比明显低于良性梗阻性黄疸,差异均有统计学意义（均P＜0.05）。恶性梗阻性黄疸患者血清CA125、CEA水平均明显高于良性梗阻性黄疸患者（均P＜0.05）;而两组血清CA19-9水平对比不明显（P＞0.05）。MRCP联合血清CA125、CA19-9、CEA诊断良恶性梗阻性黄疸的曲线下面积、灵敏度、特异度、约登指数均明显高于MRCP和血清CA125、CA19-9、CEA单独诊断。结论：MRCP联合血清CA125、CA19-9、CEA对良恶性梗阻性黄疸的诊断价值较高,值得临床推广应用。     

血清及胸腔积液中CA19-9、SCC-Ag及CYFRA21-1对肺癌诊断意义的对比研究

目的:探讨肺癌患者血清及胸腔积液中的糖蛋白抗原19-9(CA19-9)、鳞状细胞癌抗原(SCC-Ag)和细胞角蛋白19片段(CYFRA21-1)对肺癌的诊断意义。方法:选取2016年1月到2017年6月在我院接受治疗的肺癌患者67例作为肺癌组,另选取我院同期收治的肺良性病变患者55例纳入良性病变组。采用电化学发光法检测并对比两组患者血清及胸腔积液中的CA19-9、SCC-Ag和CYFRA21-1水平,比较所有研究对象血清及胸腔积液中CA19-9、SCC-Ag和CYFRA21-1的阳性率并分析其诊断价值。结果:肺癌组患者血清及胸腔积液中的CA19-9、SCC-Ag和CYFRA21-1水平显著高于良性病变组,有统计学差异(P0.05)。CA19-9、SCC-Ag和CYFRA21-1在胸腔积液中的阳性率高于在血清中的阳性率,有统计学差异(P0.05)。胸腔积液中CA19-9、SCC-Ag和CYFRA21-1单项检测对肺癌的灵敏度显著高于血清检测,血清及胸腔积液中CA19-9、SCC-Ag和CYFRA21-1三项联合检测的灵敏度、特异性、阳性预测值均高于单项检测,差异均有统计学意义(P0.05)。结论:肺癌患者血清及胸腔积液中CA19-9、SCC-Ag和CYFRA21-1呈现高表达,三项指标联合检测可提高诊断肺癌的灵敏度、特异性和阳性预测值。     

肺癌患者血清CEA，CA19-9，CA125 及CA153 围手术期动态监测的临床 意义

目的:探讨动态监测肺癌患者围手术期血清CEA、CA19-9、CA125及CA153水平变化的临床意义。方法:随机选取2014年5月至2015年5月收治的肺癌患者58例为研究对象,另选取同期在我院接受体检的健康人群15例为对照组。分别测定肺癌患者手术前及术后1天、1周、1个月、3个月的血清CEA、CA19-9、CA125、CA153水平,并与对照组的上述各血清肿瘤标志物进行比较。结果:肺癌患者术前空腹血清CEA、CA19-9、CA125、CA153水平明显高于对照组,差异具有统计学意义(P0.01)。肺癌患者术后1天、1周、1个月及3个月的血清CEA、CA19-9、CA125、CA153水平明显低于术前,差异具有统计学意义(P0.05)。肺癌患者术后1个月的平均空腹血清CEA、CA19-9、CA125、CA153水平高于术后3个月平均水平,但差异不具有统计学意义(P0.05)。结论:对肺癌患者的血清CEA、CA19-9、CA125、CA153水平进行围手术期动态监测有助于评估手术治疗效果。     

Radioimmunoscintigraphy using monoclonal antibodies to CEA, CA 19-9 and CA 125

131I labelled F (ab')2 fragments of monoclonal antibodies against CA 19-9 and CEA ("radioimmunococktail" IMACIS 1) were used in a prospective study (n = 60 patients) and in a retrospective study (n = 32 patients) for the detection of colorectal carcinomas (n = 67) and other gastrointestinal CEA/CA 19-9-producing tumors (n = 32). Sensitivity was 82% and specificity 90%. Immunoscintigraphy proved useful and complementary to CT scan and sonography, especially in the diagnosis of pelvic recurrences and intra-abdominal metastases. In addition, monoclonal antibody OC 125 (IMACIS 2) was used for the detection of ovarian carcinomas (n = 10) and other CA 125 producing tumors. Immunoscintigraphy was positive in all patients (n = 18) suggesting that this radioimmunological approach could be of use in the staging, therapeutic control and earlier diagnosis of recurrent epithelial ovarian carcinoma.     

CEA、CA125、CA72-4、CYFRA211联合NSE对非小细胞肺癌诊断运用分析

目的:研究癌胚抗原(CEA)、糖类抗原125(CA125)、糖类抗原72-4(CA72-4)、细胞角蛋白片段211(CYFRA211)联合神经元烯醇化酶(NSE)对非小细胞肺癌诊断效果分析.方法:选择2009年3月至2011年3月来我院进行检测的50例非小细胞肺癌患者进行研究,并与同期进行体检的肺部良性疾病患者和健康体检者共50例进行对比分析,分别标记为实验组和对照组.分别采用免疫印迹增强的化学发光法对两组的CEA、CA125、CA72-4、CYFRA211以及NSE的水平进行检测分析.结果:NSE对非小细胞肺癌检测的特异度为98.4％,敏感度为16.3％.NSE联合CEA、CA125、CA72-4、CYFRA211检测对于非小细胞肺癌的敏感度(94％)和准确度(92％)均明显高于其余3组,差异有显著性差异(P＜0.05).结论:采用CEA、CA125、CA72-4、CYFRA211联合NSE对非小细胞肺癌患者进行诊断,提高了诊断的敏感度,并且提高了诊断的准确度.     

Clinical evaluation of the simultaneous determination of CA 15-3, CA 125 and sHER2 in breast cancer

Objective We investigated serum levels of CA 15-3, sHER2 and CA 125, and their usefulness in the detection of metastatic disease in breast cancer patients.

Methods The levels of CA 15-3, sHER2 and CA 125 tumour markers were determined in 60 patients, 40 with localized and 20 with metastatic breast carcinoma. The control group consisted of 10 healthy women.

Results We found that, at the time of diagnosis, serum levels of all three tumour markers were elevated in patients with distant metastases, but of minute importance in the detection of any breast cancer. When the data for the individual markers were combined the overall sensitivity of metastases detection with all three markers improved. In this regard, 90% of patients with distant metastases had an increase in serum level of at least one of tested tumour markers. Similar results were obtained using receiver operating characteristic curve (ROC). Moreover, using ROC we defined cut-off values for metastasis detection for each of the tested markers.

Conclusion Our findings indicate that measurement of CA 15-3 serum values in conjunction with sHER2 and CA 15-3 can increase sensitivity in metastasis detection.     

Clinical evaluation of the simultaneous determination of CA 15-3, CA 125 and sHER2 in breast cancer

Objective We investigated serum levels of CA 15-3, sHER2 and CA 125, and their usefulness in the detection of metastatic disease in breast cancer patients.

Methods The levels of CA 15-3, sHER2 and CA 125 tumour markers were determined in 60 patients, 40 with localized and 20 with metastatic breast carcinoma. The control group consisted of 10 healthy women.

Results We found that, at the time of diagnosis, serum levels of all three tumour markers were elevated in patients with distant metastases, but of minute importance in the detection of any breast cancer. When the data for the individual markers were combined the overall sensitivity of metastases detection with all three markers improved. In this regard, 90% of patients with distant metastases had an increase in serum level of at least one of tested tumour markers. Similar results were obtained using receiver operating characteristic curve (ROC). Moreover, using ROC we defined cut-off values for metastasis detection for each of the tested markers.

Conclusion Our findings indicate that measurement of CA 15-3 serum values in conjunction with sHER2 and CA 15-3 can increase sensitivity in metastasis detection.     

CA 72-4 compared with CEA and CA 19-9 as a marker of some gastrointestinal malignancies

The objective of this study was to compare CA 72-4 with CEA and CA 19-9 in gastrointestinal malignancies. CA 72-4 was assayed by radioimmunoassay and CEA and CA 19-9 with the Abbott IMx analyser. The study included 52 patients with gastrointestinal cancer and 20 controls with benign gastrointestinal diseases. The 52 cases showed marker sensitivities of 39%, 49% and 35% for CA 72-4, CEA and CA 19-9, respectively, and 64% when the markers were combined. Marker expression in serum was highest in colorectal carcinoma followed by gastric and esophageal carcinoma. The sensitivities of the individual markers in colorectal, gastric and esophageal carcinomas, respectively, were: CA 72-4, 56%, 32% and 18%; CEA, 83%, 33% and 18%; CA 19-9, 53%, 25% and 18%. The sensitivity of the three markers in combination was 89%, 50% and 46% in colorectal, gastric and esophageal cancer, respectively. The specificity of CA 72-4, CEA and CA 19-9 was 100%, 72% and 86%, respectively. However, CA 72-4 is not a useful a marker for gastrointestinal cancers because of its poor sensitivity. CEA, which had the best overall sensitivity and a reasonable specificity, was the most useful single marker, especially for colorectal cancer. Whereas the single markers were not useful in gastric and esophageal cancer, the combination of the three may be.     

AFP, CEA, CA 19-9 and TPA in hepatocellular carcinoma.

The present study is based on the assay of four markers (AFP, CEA, TPA, Ca 19-9) using IRMA methods in 36 normal subjects, 44 cirrhosis and 66 HCC patients. Parametric and non parametric tests were used to test differences and correlations. ROC curves and discriminant functions were also elaborated. Normal 95% "cut-off" was determined by the "boostrap" method yielding: CEA 3.4 ng/ml; Ca 19-9 55 U/ml; TPA 58U/l and AFP 5.2 ng/ml. In HCC patients the values of the four markers were, on average, significantly different from those of normal subjects. However, only AFP and TPA exhibited high diagnostic accuracy (90%) for detection of the tumor. Higher than normal mean values for all markers were, also observed in cirrhotic patients. Only AFP yielded effective discrimination between HCC and cirrhosis. The positive prediction for the presence of the tumor on cirrhotic ground was 95% for AFP values higher than 18.5 ng/ml, with a 78% negative predictive value with a 6 ng/ml threshold. Association of AFP with TPA showed only a marginal diagnostic improvement. Results were not improved at all by combining CEA and Ca 19-9 with AFP and/or TPA. In conclusion, AFP is and remains the best marker for HCC and the only one effective in discriminating of HCC from cirrhosis. TPA may be considered a valid alternative if cirrhosis is not present. CEA and Ca19-9 are of no use.     

Comparison of prolactin, CA 15-3 and TPA in breast carcinomas

Circulating prolactin, CA 15-3 and TPA were assayed pre-therapeutically and sequentially thereafter from 68 breast cancer patients attending the Gujarat Cancer and Research Institute, Ahmedabad--a regional cancer institute in Western India. The three marker values were correlated with the stage, histologic grade and disease status. At least one of the markers was elevated in 82% of patients. CA 15-3 and TPA levels were elevated with the advancement of stage. Prolactin levels were high in poorly differentiated tumors of pre-menopausal patients. The disease status was effectively reflected by the levels of prolactin and CA 15-3. TPA showed high false positivity so was of no use as an indicator of disease status. Recurrence could be predicted early, with a lead time of 3-6 months using prolactin and CA 15-3.     

血清CEA、CA19-9、CYFRA21-1与结直肠腺癌的相关性分析

目的:探究血清癌胚抗原(carcinoembryonic antigen,CEA)、糖类抗原19-9、细胞角蛋白19片段(cytokeratin19 fragements,CYFRA21-1)与结直肠腺癌的病理相关性。方法:选择于我院接受治疗的80例结直肠腺癌患者为病例组,选择同期于我院接受治疗的50例良性结直肠病变患者为良性对照组,选择我院体格检查的50例健康个体为对照组,分别采集三组个体的血样并进行CEA、CA19-9以及CYFRA21-1水平的检测,并比对三组个体上述因子阳性表达率、因子水平,同时分析三种因子同结直肠腺癌患者TNM分期相关性,最后探究三种因子对结直肠腺癌的诊断价值。结果:(1)以CEA≥2.805μg/L、CA19-9≥39 U/m L、CYFR21-1≥3.3 ng/mL为临界值,结果显示病例组CEA阳性率51.25%,CA19-9阳性率31.25%,CYFR21-1阳性率40.00%,明显高于良性组的10.00%、20.00%和10.00%,高于对照组的8.00%、12.00%和2.00%(P<0.05);(2)比较显示病例组患者的CEA、CA19-9以及CYFR21-1水平明显高于良性对照组以及对照组(P<0.05),良性对照组CEA、CA19-9以及CYFR21-1水平明显高于对照组(P<0.05);(3)比较显示IV期结直肠腺癌患者CEA、CA19-9以及CYFRA21-1水平明显高于III期以及I+II期(P<0.05),III期三种因子水平明显高于I+II期(P<0.05);(4)CEA对结直肠腺癌诊断一致性71.25%,灵敏度65.00%,特异度90.00%;CA19-9诊断一致性46.25%,灵敏度35.00%,特异度80.00%;CYFRA21-1诊断一致性55.00%,灵敏度46.67%,特异度80.00%;联合诊断一致性95.00%,灵敏度95.00%,特异度95.00%。结论:血清CEA、CA19-9以及CYFRA21-1对结直肠腺癌具有较明确的诊断价值,不同病理分期患者中表达差异明显,可以考虑将联合诊断作为结直肠腺癌鉴别方式之一,推广于临床中。