RESUMO
【Objective】 To compare the value of CT pulmonary angiography (CTPA) and echocardiography in predicting the degree pulmonary hypertension (PH). 【Methods】 Fifty-four patients in our hospital who underwent right heart catheterization, CTPA and echocardiography for suspected or confirmed PH from November 2013 to April 2021 were retrospectively recruited. Pulmonary artery systolic pressure (PASP) and mean pulmonary artery pressure (PAMP) were measured by right heart catheterization. According to PAMP, the patients were divided into non-PH group and mild, moderate, and severe PH groups. The three-dimensional model of the pulmonary artery was obtained by computer-aided segmentation, and the best fitting circle diameter (Dfit), inscribed circle diameter (Dmin), circumscribed circle diameter (Dmax), hydraulic diameter (Dh), cross-sectional area (Area), circumference (Scf), and the largest area and largest short diameter of the right ventricle were measured. Echocardiography was used to estimate PASP. The differences in the above parameters between different PH groups were compared, the correlations of the above parameters with PASP and PAMP were analyzed, and statistically significant indicators were included to establish three predictive models of PAMP (Model 1: CTPA pulmonary artery; Model 2: CTPA pulmonary artery+CTPA right ventricle; Model 3: CTPA pulmonary artery+CTPA right ventricle+echocardiography), and receiver operating characteristic (ROC) curves were used to compare the diagnostic performance of the three models. 【Results】 Some parameters of main pulmonary artery (Dfit, Dmin, Dmax, Dh, Area, Scf), right pulmonary artery (Dmax, Dh, Area, Scf), left pulmonary artery (Dfit), and right ventricular short diameter increased with the increase of PAMP (P<0.05). Dfit, Dmin, Dh, and area of main pulmonary artery, right pulmonary artery and left pulmonary artery were positively correlated with PASP and PAMP (P<0.05). Right ventricular short diameter and right ventricular maximum area were positively correlated with PASP (P<0.05), and right ventricular short diameter was positively correlated with PAMP (P<0.05). The estimated value of pulmonary artery systolic blood pressure in echocardiography was positively correlated with PASP and PAMP (P<0.05). Model 1, Model 2 and Model 3 could all be used to identify mild PH and moderate PH, among which Model 3 had the best performance in identifying non-PH and mild PH, moderate PH and severe PH. 【Conclusion】 CTPA and echocardiography are helpful in assessing the degree of PH, and the combination of the two has better accuracy in distinguishing non-PH from mild PH, moderate and severe PH.
RESUMO
Objective:To evaluate the diagnostic value of the 18F-prostate specific membrane antigen (PSMA)-1007 PET/CT in seminal vesicle invasion (SVI) of prostate cancer. Methods:Clinical and pathological materials of 88 patients (age: 51-84 years) who underwent radical prostatectomy (RP) between May 2019 and December 2021 in the First Affiliated Hospital of Xi′an Jiaotong University were analyzed retrospectively. All patients underwent 18F-PSMA-1007 PET/CT examination for primary staging before surgery. The diagnostic efficiency of 18F-PSMA-1007 PET/CT in SVI was obtained using postoperative pathological results as the " gold standard" and ROC curve was drawn. Furthermore, univariate and multivariate logistic regression analyses were used to screen the influencing factors for 18F-PSMA-1007 PET/CT prediction of SVI. Results:The accuracy, sensitivity, specificity, positive predictive value and negative predictive value of 18F-PSMA-1007 PET/CT in diagnosing SVI were 79.55%(70/88), 72.73%(16/22), 81.82%(54/66), 57.14%(16/28) and 90.00%(54/60), respectively. The ROC AUC was 0.77. Results of univariate logistic regression showed that total prostate specific antigen (tPSA), primary SUV max, Gleason score, International Society of Urological Pathology (ISUP) grade group were associated with 18F-PSMA-1007 PET/CT prediction of SVI. Results of multivariate logistic regression showed that Gleason score (odds ratio ( OR)=2.04, 95% CI: 1.19-3.50, P=0.009) was a predictor of SVI in prostate cancer. Conclusion:18F-PSMA-1007 PET/CT has certain diagnostic value in SVI of prostate cancer, and combining with Gleason score can improve the diagnostic efficiency.
RESUMO
Objective To study the clinical efficacy of transjugular intrahepatic portosystemic shunt (TIPS) combined with agitation thrombolysis in treatment of acute portal vein thrombosis (PVT) in patients with liver cirrhosis.Methods The clinical data of 37 cirrhotic patients with acute PVT treated from January 2014 to December 2017 at the First Affiliated Hospital of Henan University of Science and Technology was analyzed.There were 20 males and 17 females with age ranging from 29 to 71 years.The patients were divided into the combined group (n =15) and the anticoagulation group (n =22).The combined group was treated with TIPS combined with agitation thrombolysis anticoagulation.The anticoagulation group was treated with anticoagulation.The changes in liver function and hemodynamics of portal vein of the two group were compared.Follow-up studies included postoperative portal vein patency,bleeding and survival rates of patients.Results The postoperative portal vein pressure and maximum burden of PVT in the combined group were significantly lower than those before operation,and the portal vein maximum blood volume and flow velocity of portal vein were significantly higher than those before operation (all P ＜ 0.05).At 2 weeks,6 months and 12 months after operation,the maximum burden of PVT of the combined group was (13.9 ±5.4)％,(16.1 ±5.5)％ and (13.8 ±6.2)％,respectively,which was significantly lower than that of the anticoagulant group (84.1±31.3)％,(85.9±27.6)％ and (88.2±39.5)％ (all P＜0.05).At 2 weeks,6 months and 12 months after operation,the flow velocity of portal vein of the combined group was (21.6 ± 5.7) cm/s,(16.1 ± 6.3) crn/s and (17.6 ± 4.9) cm/s,respectively,which was significantly higher than that of the anticoagulation group (9.7 ± 4.6) cm/s,(8.1 ± 4.3) cm/s and (8.2 ± 3.5) cm/s (all P ＜ 0.05).After operation,3 patients in the combined group developed recurrence of portal vein thrombosis,while the remaining patients had smooth blood flow in the portal vein and shunt.In the anticoagulation group,only 3 patients had unobstructed portal vein blood flow.The cumulative rate of no gastrointes tinal bleeding in the combined group was significantly better than the anticoagulant group.The cumulative survival rate of the combined group was also significantly better than the anticoagulation group (P ＜ 0.05).Conclusion TIPS combined with agitation thrombolysis was more effective than the traditional anticoagulant therapy in treatment of acute portal vein thrombosis in cirrhotic patients.
RESUMO
Objective To explore the characteristics and significance signification of changes of cerebral glucose metabolism in patients with Alzheimer's disease (AD).Methods Seventeen patients diagnosed with AD based on standard clinical diagnostic criteria (AD group),and 15 healthy volunteers as normal control group (HC group)were enrolled in this study.Positron emission tomography (PET)were performed in both groups and three-dimensional reconstruction images were obtained.The visual evaluation,regions of interesting (ROI)technology and brain function analysis software were used to analyze PET results data in of each group.Results ①In AD group,glucose metabolisam was decreased and mainly distributed in the parietal lobe,temporal lobe,frontal cortex,posterior cingultate and hippocampus,but not in occipital lobe,basal ganglia,thalamus and cerebellum nuclei basales,thalamus and opisthencephalon.Ssomatic sensation and motor functionand were not affected.②Compared with mild AD patients,glucose metabolism inof moderate and severe AD patients was decreased more significantly in parietal lobe,temporal lobe,frontal cortex,posterior cingultate and hippocampus,with a wider range of lesionsthe range also expanded,and visual area and speech centerpartly followed by the disorder of visual center and speech center may bewere involved in some patients.③The built-in brain function analysis software of PET system software carried by PET system was more objectiveprecise and accurate than visual evaluation or and ROI technology,can accurately reflected the changes in brain glucose metabolism which and iwas suitable for popularization and application.Conclusion Because the distribution of impaired glucose metabolism in cerebral cortex hads certain characteristics and regularity laws in AD patients.18 F-FDG PET imaging can maybe meaningful valuable in diagnosis,differential diagnosis and therapeutic evaluation in AD.
RESUMO
Objective To explore the characteristics and significance signification of changes of cerebral glucose metabolism in patients with Alzheimer's disease (AD).Methods Seventeen patients diagnosed with AD based on standard clinical diagnostic criteria (AD group),and 15 healthy volunteers as normal control group (HC group)were enrolled in this study.Positron emission tomography (PET)were performed in both groups and three-dimensional reconstruction images were obtained.The visual evaluation,regions of interesting (ROI)technology and brain function analysis software were used to analyze PET results data in of each group.Results ①In AD group,glucose metabolisam was decreased and mainly distributed in the parietal lobe,temporal lobe,frontal cortex,posterior cingultate and hippocampus,but not in occipital lobe,basal ganglia,thalamus and cerebellum nuclei basales,thalamus and opisthencephalon.Ssomatic sensation and motor functionand were not affected.②Compared with mild AD patients,glucose metabolism inof moderate and severe AD patients was decreased more significantly in parietal lobe,temporal lobe,frontal cortex,posterior cingultate and hippocampus,with a wider range of lesionsthe range also expanded,and visual area and speech centerpartly followed by the disorder of visual center and speech center may bewere involved in some patients.③The built-in brain function analysis software of PET system software carried by PET system was more objectiveprecise and accurate than visual evaluation or and ROI technology,can accurately reflected the changes in brain glucose metabolism which and iwas suitable for popularization and application.Conclusion Because the distribution of impaired glucose metabolism in cerebral cortex hads certain characteristics and regularity laws in AD patients.18 F-FDG PET imaging can maybe meaningful valuable in diagnosis,differential diagnosis and therapeutic evaluation in AD.
RESUMO
Objective To discuss the MRI features of pyometra and its correlation with pathologic.Methods MRI and DWI data of 12 cases pyometra proved by surgery and pathology were analyzed retrospectively, and a comparision with pathologic findings was made.Mean ADC values were calculated.Results According to the homogeneity of MRI signal: Uniform signal type in 2 cases,T1WI showed slightly low signal,T2WI showed slightly high signal,DWI showed high signal,and the distribution of pus compositions is relatively uniform;Signal mixed type in 5 cases, T2 showed at the bottom of the pus or peripheral mixed slightly short signal, DWI showed mixed high signal, there was some sediment in the bottom of the pus;5 cases of liquid layer type, the upper displayed signal of water,and the lower signal was lower than the upper signal on T2WI, of which 3 cases showed uniform signal of the lower, DWI showed a uniform high signal, the distribution of pus compositions is uniform, the other 2 cases showed mixed signal of the lower, which was pyometra with bleeding,DWI showed high signal and low signal mixed together.The average ADC value of the 12 patients were 0.532×10-3 mm2/s.12 cases of uterine volume were increased, including 10 cases of uterine wall thinning, the other 2 cases with inflammatory invasion, the uterine wall thickening.8 cases with cervical cancer.5 cases with pelvic effusion.Conclusion MRI findings of pyometra are characteristic, its MRI manifestations and pathological components are highly correlated,and the ADC value is of great value in the diagnosis of pyometra.
RESUMO
Programmed cell death-1 (PD-1), as a member of cytotoxic T lymphocyte-associated antigen-4 (CTLA-4), is ex-pressed on the membrane of activated T cells , B cells and macrophages.Combining with programmed cell death-ligand 1 (PD-L1), PD-1 will inhibit the proliferation of T cells and further involve in T cell receptor signaling negative feedback regulation .As the signifi-cant relationship between PD-1 /PD-L1 expression and prognosis in tumor cells , monocytes and T cells of ovarian cancer patients , this review focuses on the biological significance , influencing factors , advances of related drugs and clinical application of PD-1 /PD-L1 in ovarian cancer .
RESUMO
Objective To observe the application value of PET glucose metabolic imaging and MR structural imaging in diagnosis of Alzheimer disease (AD) and mild cognitive impairment (MCI).Methods Totally 18 patients with AD (AD group),6 patients with MCI (MCI group) and 10 healthy volunteers (HC group) were enrolled.There were 11 cases of moderate or severe AD and 7 cases of mild AD in AD group.PET and structural MR imaging of the brain were performed.The radioactivity distribution in the brain and the hippocampal atrophy were observed through visually evaluation and quantitative analysis.Results The glucose metabolism reduced in certain regions of the brain in all AD patients (18/18,100％).Among them,11 patients with moderate or severe AD accompanied hippocampal atrophy,while 3 of 7 patients with mild AD showed hippocampal atrophy.No hippocampal atrophy was found in 5 patients with MCI (5/6,83.33 ％),but 2 of them showed decreased radioactivity in the brain.The symmetric mild diminution of radioactivity distribution without hippocampal atrophy was found in all subjects in HC group (10/10,100％).Two cases in HC group showed mild encephalanalosis.Conclusion Both of PET glucose metabolic imaging and MR structural imaging can be used to diagnose AD or MCI with different focus.Combination of these two techniques is helpful to improving diagnostic accuracy.
RESUMO
Objective To assess the diagnostic value of mediastinal lymph node in non-small cell lung cancer using PET-CT by Meta-analysis. Methods Publications on mediastinal lymph node staging of non-small cell lung cancer by PET-CT published from January 2002 to January 2016 were filtered and assessed according to criteria from the PubMed, EMBASE, Cochrane library database. The number of true positive, false positive, false negative and true negative were extracted, meta-analysis was performed using STATA software, and receiver operating characteristic curve was applied, then area under the curve(AUC) was calculated. At last, heterogeneous sources were discussed and subgroup analyses were performed. Results Twenty-three relevant literatures(2 959 patients) were enrolled, the diagnostic sensitivity and specificity based on the patients were 0.66(0.55—0.75) and 0.84(0.79—0.89), AUC was 0.84 (0.80—0.87). The results of subgroup analysis suggested that pulmonary tuberculosis was one important factor that influenced the PET-CT diagnosis of mediastinal lymph node metastasis in NSCLC patients(P=0.01). Conclusions PET-CT has a high accuracy for the mediastinal lymph node staging in non-small cell lung cancer, and it is the recommendedexamination method in these patients. Patients who had suffered from pulmonary tuberculosis should be treated with caution.
RESUMO
Purpose To compare the relationship between the maximum standardized uptake value (SUVmax) of PET/CT imaging and tumor markers in lung cancer, and to provide evidence for the comprehensive assessment of non small cell lung cancer. Materials and Methods The results of PET/CT imaging, serum carcinoembryonic antigen (CEA), cytokeratin-19 fragment antigen 21-1 (CYFRA21-1) and neuronspecific enolase (NSE) of 179 patients with non small cell lung cancer were analyzed, subjects were then divided into different groups according to their clinical features and pathological types, the differences of SUVmax and tumor markers'' level were compared between different groups, and their correlations with tumor histological type, differentiation and the clinical stages were also analyzed.Results SUVmax of the tumor was related with lesion size,≥3 cm tumors'' SUVmax were significantly higher than that of 0.05).Conclusion SUVmax and NSE have a certain relationship with tumor differentiation in non small cell lung cancer patients, thus can be used as a reference index for prognosis of indirect prediction of lung cancer.
RESUMO
Objective To establish animal model of arterial vulnerable plaques for molecular imaging study.Methods Fifteen New Zealand white rabbits were randomly divided into high lipid diet+balloon-injury group (A),high lipid diet group (B)and regular diet group (C).Ultrasound (US)and magnetic resonance (MR)imaging were used to dynamically observe the formation of plaque in abdominal aorta. Results were compared with blood lipid level and pathological indicators.Results At 4 weeks,several plaques could be seen in group A.The plaque number increased rapidly and reached to 22 at 12 weeks,which was in parallel with the change of blood lipid. Only a few plaques were observed in group B,while no vulnerable plaque was revealed in group C.All the plaques were judged to be soft plaques on US and MR images,which was consistent with the macrophages gathering and smooth muscle cell proliferating in plaques.Conclusion High lipid diet+balloon-injury is an ideal method to build animal model for molecular imaging of atherosclerotic plaque.
RESUMO
Objective To evaluate the use of corrected standard uptake value(SUV)in patient with peripheral solitary pulmonary lesion and the relationship between corrected SUV and the lesion's size.Methods This retrospective study included 69 patients with peripheral solitary pulmonary lesions seen on PET and CT scans whose diagnoses were confirmed by pathology.Each lesion’s FDG uptake was quantified by using two methods:the SUV and the corrected SUV.The lesion’s size was recorded on CT.Results The diagnostic accuracy was 88.7% and 98.5% for PET/CT and combining corrected SUV with CT respectively.There was a positive correlation between SUV,corrected SUV and the size of lesions(r 1 =0.536,P <0.001;r 2 =0.637,P <0.001).Conclusion Measur-ing corrected SUV appears to improve the accuracy of FDG PET/CT for characterization of peripheral solitary pulmonary lesions . The volume of lesion may potentially affect the value of SUV.
RESUMO
Objective To develop a superparamagnetic iron oxide nanoparticles ( SPIO ) based on MRI probe specifically targeting human epidermal growth factor receptor 2 (HER2) and explore its value as MRI positive contrast agents in vitro.Methods (1) The superparamagnetic iron oxide ( PS) was obtained by means of classical coprecipitation in polylactic acid solution , then coupled with fluorescein isothiocyanate (FITC) labeled LTVSPYW to develop the targeted probe ( FITC-LTVSPWY-PS).The particle size was measured under transmission electron microscope.Relaxation rate was detected by 3.0 T MR scanner.(2) Climbing films of human breast cancer cell MCF-7 were prepared and incubated with FITC-LTVSPWY-SPIO, then fluorescence distribution was observed under inverted microscope.And distribution of iron particles was confirmed by prussian blue staining.(3) MCF-7 and MDA-MB-231 cells were incubated with FITC-LTVSPWY-SPIO and PS, respectively.MCF-7 incubated with FITC-LTVSPWY-PS were used as experimental group, MCF-7 treated with PS as control group , and cells added with nothing as blank group.There were 3 samples in each group.The MR imaging was performed only once and T 2 WI signal intensity of cells was recorded.The comparison of T 2 signal intensity among groups was conducted by using one-way ANOVA.Results The core and surface size of nanoparticles were (13.9 ±1.6) nm and (122.0 ±5.5) nm respectively.Zeta potential and relaxation rate of the FITC-LTVSPWY-PS were ( -30.7 ±2.2 ) mV and 70.7 m· M-1 · s-1 respectively, and the PS were (28.1 ±2.8) mV and 72.1 m· M-1 · s-1 respectively.The fluorescence could be seen on the surface of MCF-7 cells, and the prussian blue staining showed that FITC-LTVSPWY-PS could specifically target HER 2-positive cells.The low signal on T 2 WI was observed in MCF-7 cells incubated with FITC-LTVSPWY-PS, whereas cells treated with PS and blank group showed equal signals , the T2 values were ( 61.8 ±5.7 ) , ( 101.6 ±2.5 ) and ( 103.5 ±1.9 ) ms respectively.Significant difference existed among these groups ( F =355.698, P <0.05 ).Conclusions The MR targeting probe FITC-LTVSPWY-PS was prepared successfully , its physical characterization and magnetic properties could target the HER 2 highly expressing on the surface of breast cancer cells and meet the need of targeted imaging.It provides an important tool for MR molecular imaging.
RESUMO
ObjectiveTo detect the expressions of Nuclear factor-erythroid 2 p45-related factor 2 (NRF2) and multidrug resistance-associated protein 2 (MRP2), and investigate their significance in primary gallbladder carcinoma. MethodsImmunohistochemistry SP assay and image analysis were used to detect the expressions of NRF2 and MRP2 protein in 59 patients with primary gallbladder carcinoma. ResultsA highly positive expression rates of NRF2 and MRP2 were found (76.3% and 74. 6%, respectively) in primary gallbladder carcinoma. The expressions of NRF2 and MRP2 had a significantly correlation with metastases, Nevin staging, and differentiation (P＜0.05), but there was no statistical association with sex and age. The expression of NRF2 had a positive correlation with MRP2 (r=0. 589,P＜0.05). Conclusion Both NRF2 and MRP2 were overexpressed in primary gallbladder carcinoma and they may play a role in the development of primary gallbladder carcinoma.
RESUMO
Epidermal growth factor receptor [EGFR] and its mutated variant EGFRvlll are involved in the occurrence and development of malignancies. Our objective was to find a correlation between EGFR and EGFRvlll expression in esophageal carcinoma and clinical outcomes. Immunohistochemistry and Western blot analysis were applied to detect expression of EGFR and EGFR vlll in specimens of esophageal carcinoma patients. Patient-matched normal tissues served as the control. EGFR and EGFRvlll were detected in cell membrane and cytoplasm. A significantly higher expression of EGFR and EGFRvlll was observed in tumors as compared to normal tissues. Moreover, the expression of EGFR and EGFRvlll in esophageal carcinoma was significantly associated with the tumor location and degree of tumor invasion, tumor-node- metastasis [TNM] staging, pathological grade, and lymph node metastasis. However, there were no significant associations with age, invasiveness, tumor size, or growth pattern. The over expression of EGFR or EGFRvlll is related with the malignant degree, and EGFR or EGFRvlll may be a novel promising indicator for early diagnosis of esophageal carcinoma
Assuntos
Humanos , Feminino , Masculino , Imuno-Histoquímica , Receptores ErbB , Western BlottingRESUMO
Background and purpose: It has been reported that epidermal growth factor receptor (EGFR) and epidermal growth factor receptor variant Ⅲ (EGFRv Ⅲ) play important roles in the progression of various cancers. This research was to detect the expression and relation of EGFR and epidermal growth factor receptor variant Ⅲ (EGFRv Ⅲ) to human esophageal carcinoma. Methods: In 66 human esophageal carcinoma tissues, the expression of EGFR and EGFRv Ⅲ were detected by imrnunohistochemistry and western-blot. The expression of EGFR and EGFRv Ⅲ along with the patients' clinicopathologic factors was retrospectively analyzed. Correlation analysis between EGFRv Ⅲ and EGFR was analyzed by Pearson correlation coefficient. Results: The average gray scale values of EGFR in esophageal carcinoma and normal tissues by immunohistochemistry were 25.4±3.2 and 5.0±3.5, which showed a significant difference (t=5.574, P=0.000). And the average gray scale values of EGFRv Ⅲ in esophageal carcinoma and normal tissues were 22.5±4.2 and 5.5±3.0, which also showed a significant difference (t=6.701,P=0.000). The average gray scale values of EGFR in esophageal carcinoma and normal tissues respectively by western-blot were 1.37±0.41 and 0.21±0.09, which showed a significant difference (t=10.704, P=0.000) And the average gray scale values of EGFRv Ⅲ respectively were 0.828±0.15 and 0.083±0.049, which had a significant difference (t=9.362, P=0.000). Significant differences were observed in TNM-stage, lymphatic metastasis and tumor classification in both the expression of EGFR (P<0.05) and EGFRv Ⅲ (P<0.05), and but there were no obvious differences in gender, age, minor size, growth pattern in both the expression of EGFR (P<0.05) and EGFRvⅢ (P<0.05). Correlation analysis showed that there was strong association of the expression between EGFR and EGFRv Ⅲ both detected by immunohistochemistry (r=0.701,P<0.0001) and western-blot respectively(r=0.556, P=0.031). Conclusion: Our data suggests that EGFRvⅢ is over-expressed in human esophageal carcinoma. Combination of EGFR and EGFRvⅢ could be useful markers for tumorgenesis and differentiation of human esophageal carcinoma.
RESUMO
Objective To construct an Apoptin prokaryotic vector,aiming to produce antigenic fusion protein Apoptin. Methods The Apoptin gene was amplified from the template of plasmid pSSCHG/NT4-Apoptin-HA2-TAT by PCR.The Apoptin was sub-cloned into the multiple clone sites of plasmid pET-28a(+) to get the prokaryotic vector of pET-28a(+)-Apoptin,which was transformed into E.coli BL21(DE3).Expression of E.coli BL21(DE3) was induced by IPTG.The specific protein expression was detected by SDS-PAGE. Results The fusion protein was expressed with high efficiency in E.coli BL21(DE3) transformed by pET-28a(+)-Apoptin after induction with IPTG.The specific fusion protein had an apparent related molecular weight of about 17 000 ku as indicated by SDA-PAGE analysis. Conclusion The Apoptin prokaryotic expression vector with pET-28a(+)-Apoptin can effectively express Apoptin fusion protein,laying a foundation for further study of Apoptin and preparation of antibodies against Apoptin.
RESUMO
Objective To investigate the effect and clinical value of preoperative chemotherapy on the treatment of metastasized lymph nodes in patients with advanced esophageal carcinoma. Methods We studied the pathological results of primary lesions and lymph nodes of 97 patients with advanced esophageal cancer between 1996 and 1999,62patients were treated by preoperative chemotherapy and 35 patients were treated by surgery only. Results The metastasized rate and degree of mediastinum in preoperative group were 16. 1％ and 4.7％ ,whereas 65.7% and 34.2% in the surgery only group (P＜0. 05);That of abdomen in preoperative group were 25.8％ and 6.6％ ,whereas 48. 6％and 12.0％ in the surgery only group (P＜0.05). Conclusion Preparative chemotherapy is effective not only against the primary lesions but also the metastasized lymph nodes. The lower complete response rate of the metastasized lymph may account for the unsatisfied long-term results. Whole resection of primary lesions and lymph nodes are still very important for a better prognosis even for patients who have a good response for the preoperative chemotherapy.
RESUMO
Objective To detect expression of epidermal growth factor receptor variant Ⅲ (EGFRvⅢ) in human suprarenal epithelioma to explore its relation with the genesis and development of suprarenal epithelioma.Methods Immunohistochemistry and pathologic image analysis were used to semiquantitatively detect the expression of EGFRvⅢ protein in eighty human suprarenal epithelioma tissues and twenty-four normal renal tissues.Results Positive expression rate of EGFRvⅢ was 46% in human suprarenal epithelioma tissues and 8% in normal renal tissues.Their average gray scale values were 148.49?13.05 and 155.65?14.86,respectively,which showed a significant difference (t=2.13,P=0.04).There was no obvious difference between males and females (149.01?13.70 and 147.40?11.76,t=0.54,P=0.59).No significant association was observed between EGFRvⅢ expression and age (r=0.01,P=0.92).Conclusion Many human suprarenal epithelioma tissues express EGFRvⅢ.EGFRvⅢ may play certain role in the genesis and development of human suprarenal epithelioma.