ABSTRACT
Objective To retrospectively analyze contrast-enhanced ultrasound ( CEUS ) manifestations of neuroendocrine tumors ( NETs) liver metastases ,and explore the relationship between CEUS parameters and differentiation of NETs . Methods From January 2014 to June 2018 ,36 patients who had been performed CEUS due to liver metastasis of NETs with pathological diagnosis and immunohistochemical staining results were enrolled in this study . The CEUS findings of NETs liver metastases were summarized . According to the Ki-67 index ,CgA results ,and the stage G ,the patients were divided into Ki-67>20％ group and Ki-67≤20％ group ,CgA negative group and CgA positive group ,and group G1+G2 and group G3 ,respectively . The CEUS parameters of NETs liver metastases between the above groups were compared . Results In 36 lesions ,during the arterial phase of CEUS ,66 .7％ (24/36) showed hyperenhancement ,16 .7％ (6/36) isoenhancement ,13 .9％ (5/36) rim-like enhancement ,and 5 .6％ ( 2/36 ) hypoenhancement ; During the portal phase , 13 .9％ ( 5/36 ) showed hyper or iso enhancement ,86 .1％ (31/36) showed hypoenhancement . The average washout time was ( 67 .5 ± 56 .1)s ,of which 5 (13 .9％ ) lesions were washed out after 120 s . The mean starting washout time was statistically different between the CgA negative group and the positive group[(91.6±81.5)svs(60.1±38.7)s,P =0 .001] . There was no statistically significant difference in all observations between the group of Ki-67≤20％ and >20％ ,group G1+G2 and group G3( P >0 .05) . Conclusions CEUS of NETs liver metastasis has certain characteristics ,among which hyperenhancement is its main enhancement mode ,and some lesions have a longer wash out time . The relationship with the degree of differentiation needs further investigation .
ABSTRACT
Objective@#To investigate the correlation between the expression of extracellular matrix metalloproteinase-inducible factor (CD147), matrix metalloproteinase-9 (MMP-9) and human epidermal growth factor receptor-2 (HER-2) in gastric cancer tissues and clinical pathology and prognosis.@*Methods@#From June 2016 to June 2018, 80 gastric cancer specimens from the First People's Hospital of Taizhou were collected as observation group, and another 60 normal specimens of gastric mucosa adjacent to cancer were selected as control group.The expressions of CD147, MMP-9 and HER-2 were detected by SP immunohistochemical method.The positive rates of CD147, MMP-9 and HER-2 protein expression, the positive rates of CD147, MMP-9 and HER-2 protein expression in different pathological characteristics, and the positive rates of CD147, MMP-9 and HER-2 protein expression in different prognosis were compared between the two groups.@*Results@#The positive rates of CD147 (73.75%), MMP-9 (76.25%) and HER-2 (42.50%) in the observation group were higher than those in the control group (21.67%, 25.00%, 5.00%), the differences were statistically significant (χ2=37.233, 36.288, 24.797, all P<0.05). There were no statisticallysignificant differences in the positive expression rates of CD147, MMP-9 and HER-2 protein among different gender, age, tumor diameter and differentiation (all P>0.05). The positive rates of CD147 (93.88%), MMP-9 (95.92%) and HER-2 (61.22%) with lymph node metastasis were higher than those without lymph node metastasis (41.94%, 45.16%, 12.90%), the differences were statistically significant (χ2=26.462, 27.012, 18.142, all P<0.05). The positive rates of CD147 (96.15%), MMP-9 (92.31%) and HER-2 (69.23%) in the death group were higher than those in the survival group (62.96%, 68.52%, 29.63%), the differences were statistically significant(χ2=9.987, 5.484, 11.263, all P<0.05).@*Conclusion@#High expression of CD147, MMP-9 and HER-2 proteins in gastric cancer tissues is closely related to invasion and metastasis, which can become a new prognostic marker and therapeutic target of gastric cancer.
ABSTRACT
Objective To explore the value of dual-source CT spectrum energy curve and iodine quantification in determining the degree of differentiation of clear cell renal carcinoma(ccRCC).Methods The radiographic data of 38 cases with pathologically confirmed ccRCC were analyzed retrospectively.All patients underwent dual-source CT,cortical phase and nephrographic phase dual energy scan,including 22 well-moderated differentiated(gradeⅠ,gradeⅡ)and 16 poorly differentiated neoplasms(gradeⅢ,gradeⅣ).The slope of spectrum energy curve (40-70 keV,70-100 keV,100-140 keV)and the normalized iodine concentration (NIC)between the two grades were compared. Results In the spectrum energy curve 40-70 keV and 70-100 keV segment interval,the slope of spectrum of well-moderated differentiated group was higher than that of poorly differentiated group,the difference was statistically significant(P<0.05).In the 100-140 keV segment interval,the slope of spectrum of well-moderated differentiated group was higher than that of poorly differentiated group, but the difference was insignificant(P>0.05).The NIC of well-moderated differentiated group was significantly higher than that of poorly differentiated group(P<0.05).Conclusion The slope of spectrum energy curve and NIC are correlated with the differentiation degree of ccRCC.The slope of spectrum energy curve and iodine quantification of dual-source CT could be used as new methods for preoperative grading of ccRCC.
ABSTRACT
Purpose To study the expression of Galectin-7 in squamous carcinoma of the cervix and its correlation with HPV 16 infec-tion in Uyghur and Han women. Methods The expression of Galectin-7 in paraffin-embedded cervical tissues collected from Uyghur women including 21 patients with cervicitis and 49 patients with squamous carcinoma of the cervix and Han women including 25 patients with cervicitis and 29 patients with squamous cervical cancer was evaluated by immunohistochemical SP method. The infection of HPV 16 was evaluated by PCR amplification of HPV DNA from the corresponding cervical tissue samples. The expression of levels of Galec-tin-7 in cervical tissues was analyzed according to the corresponding integrated optical density ( IOD) value of Galectin-7 in cervical le-sions with professional image analysis software Image-Pro Plus (IPP) 6. 0. Results PCR detection of HPV 16 in Uyghur patients from Kashghar showed that 20 patients were positive and 29 cases were negative for HPV 16 in squamous cervical cancer patients whereas in patients with cervicitis, only 5 cases were positive, 16 cases were negative for HPV 16. Furthermore the detection of HPV 16 in Han patients showed that 2 cases were positive and 27 cases was negative in patients with squamous cervical cancer patients, and all the ca-ses were negative for HPV 16 in patients with cervicitis. The expression of Galectin-7 in squamous cervical cancer tissues was signifi-cantly lower than that in the cervicitis patients (P<0. 05). The expression of Galectin-7 in HPV 16 positive squamous cervical cancer patients was significantly lower than that in HPV 16 negative patients ( P<0. 05 ) . There was no obvious correlation between the ex-pression levels of Galectin-7 in squamous cervical cancer patients with the differentiation degree and disease oneset age both in Uyghur and Han patients. Conclusion Compared with cervicitis tissues, Galectin-7 expression in squamous cervical cancer is down-regulated in Uyghur women from Kashghar region implying that the expression of Galectin-7 may play a certain role in the occurrence and develop-ment of squamous cervical cancer, and its detection has a certain reference value for the diagnosis of cervical cancer for Uyghur women.
ABSTRACT
Objective:To study the direction of cervical node extracapsular spread(ECS)of oral squamous cell carcinoma(OSCC). Methods:57 cases of OSCC were treated by combined radical operation.The relationship between ECS and T stage,tumor thick-ness,differentiation degree of OSCC,lymph node size and the ECS direction in each lymph node level were statistically analysed. Results:ECS was found in 30 of the 57 cases,and in 78 of the 174 metastasis positive lymph nodes.29 ECS nodes in levelⅠ,the frequency of the shallow side was 26,the deep side 13(P=0.000 3).But the difference in other levels was not statistically signifi-cant(P>0.05).It was not statistically significant between the incidence of ECS and T stage;it was statistically significant between the incidence of ECS and tumor thickness(P<0.05),tumor differentiation degree(P<0.05)and the lymph node size(P<0.01). Conclusion:ECS of OSCC on the shallow side is more than that in the deep side of lymph nodes in levelⅠ.ECS is positively corre-lated with the tumor thickness of OSCC,metastasied lymph node size;negatively related to the differentiation degree of OSCC.
ABSTRACT
The hardship and differentiation degrees are important judgments about test questions.The key purpose about analyzing hardship and differentiation degrees is not only to keep the qualified test questions,eliminate the unqualified and refine the test questions,but also to accumulate valuable data to make exams more scientific,standardized and specified.