Ultrasonography-guided wire-localization and nano-carbon staining for detection of sentinel lymph node in breast cancer / 肿瘤研究与临床

Objective@#To evaluate the usage of ultrasound guided wire-localization, nano-carbon staining and the combination of the above two methods in detecting sentinel lymph node (SLN) in breast cancer.@*Methods@#A total of 159 cases of breast cancer from May 2015 to December 2017 in Shanxi Provincial Cancer Hospital were selected, and they were treated with ultrasound guided wire-localization, nano-carbon staining and combination of the two methods separately to detect SLN before the operation. After the operation, SLN and axillary lymph node in each group were marked and made pathological diagnosis.@*Results@#There were 69 cases with pathological diagnosis of SLN metastasis and 90 cases without abnormal representation. With the patient as the unit, the sensitivity of ultrasound guided wire-localization was 100.0% (69/69), the sensitivity of nano-carbon staining was 98.6% (68/69), and the sensitivity of combination of the two methods was 97.1% (67/69). The specificity of ultrasound guided wire-localization was 3.3% (3/90), the specificity of nano-carbon staining was 2.2% (2/90), and the specificity of combination of the two methods was 5.6% (5/90). With the count of SLN as the unit, the combination of the two methods had the highest diagnostic efficiency in detecting SLN, and the difference was statistical significant (χ2 = 34.31, P < 0.001).@*Conclusions@#Ultrasound guided wire-localization and nano-carbon staining are safe and accessible methods for detecting SLN. It provides a precise treatment for early breast cancer, and it can protect medical staff from radiation, which is expected to be the best method for detection of SLN in breast cancer.

Significance of TSLC1 gene methylation and TSLC1 protein expression in the progression of cervical lesions / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To study the expression and significance of tumor suppressor in lung cancer 1 (TSLC1) gene methylation, the expression of TSLC1 protein in cervix cancer and precancerous lesions as well as their relationship with HR-HPV DNA infection.</p><p><b>METHODS</b>The clinicopathological data of 92 cases of different cervical lesions during March 2011 to August 2012 treated in our hospital were collected. There were pathologically confirmed 10 cases of normal cervix, 26 cases of cervical intraepithelial neoplasia (CIN) I, 20 cases of CIN II, 15 cases of CIN III, and 21 cases of cervical cancer. Methylation-specific polymerase chain reaction (MSP) was used to detect the TSLC1 gene methylation status in cervical lesions, immunohistochemistry (SP) was used to detect the expressions of TSLC1 protein in cervical lesions, and the second generation hybrid capture (HC2) method was used to detect the high-risk HPV in cervical lesions.</p><p><b>RESULTS</b>The expression rate of TSLC1 gene methylation in normal cervical tissue, CIN I, CIN II, CIN III and SCC were 10.0%, 30.8%, 55.0%, 60.0%, 66.7%, respectively, showing a statistically significant difference (P = 0.004). The positive expression rate of TSLC1 protein in normal cervical tissue, CIN I, CIN II, CIN III and SCC were 100.0%, 80.8%, 65.0%, 33.3%, and 23.8%, respectively, with a significant difference (P = 0.004). In the progression from CIN to invasive cervical cancer, there was no significant correlation between TSLC1 gene methylation and HR-HPV DNA infection (P = 0.919), TSLC1 protein expression and HR-HPV DNA infection (P = 0.664). The correlation analysis showed a negative correlation between TSLC1 gene methylation and TSLC1 protein expression (r = -0.674, P < 0.001).</p><p><b>CONCLUSIONS</b>TSLC1 gene promoter methylation may be an early event in the cervical carcinogenesis, become an early sensitive marker, and serve the early prevention and prognostic prediction for cervical cancer.</p>

Research progress of human telomerase RNA gene component genetic testing in the screening of cervical lesions / 肿瘤研究与临床

During the progression of cervical intraepithelial neoplasia (CIN) to invasive cervical cancer,human telomerase RNA gene component (hTERC gene) amplification varies with the different stages of cervical lesions.hTERC gene plays an important role in the early diagnosis of cervical lesions and monitoring the development of cervical cancer.hTERC gene is expected to be an effective specific marker in high-risk lesions of cervical screening.

Comparison of the diagnostic value of MRI diffusion weighted imaging with ultrasound and mammography in the breast disease / 中国基层医药

Objective To explore the clinical value of diffusion weighted imaging (DWI) in the diagnosis of breast disease ,and compared with ultrasound and mammography .Methods The clinical data of 28 patients who were pathologically confirmed with breast cancer were retrospectively reviewed .The diagnostic accuracy of DWI ,mammogra-phy and ultrasound , the surface diffusion coefficients ( ADC value ) were statistically analyzed .Results ( 1 ) DWI scan:the diagnostic accuracy of malignant tumor was 90.9%(20/22),the ADC value of malignant tumor was (0.955 ±0.199) ×10 -3mm2/s;the diagnostic accuracy of benign lesions was 83.3%(5/6),the average ADC value of benign lesions was (1.660 ±0.339) ×10 -3 mm2/s,there were statistically significant differences ( t=2.371,P0.05),but for the diagnostic accuracy of benign lesions,DWI was better than ultrasound and mammography ,the difference was statistically significant (χ2 =6.146, P<0.05).Conclusion For the diagnosis of malignant breast tumors and benign lesions ,DWI is better than ultra-sound and mammography ,which has high clinical application value .

Expressions of CyclinD1 and nm23H1 related to the response of neoadjuvant chemotherapy and prognosis in cervical carcinoma / 肿瘤研究与临床

Objective To evaluate the relationship between the expressions CyclinD1 and nm23H1 and the response to neoadjuvant chemotherapy (NACT) in cervical carcinoma. Methods 100 patients with cervical cancer were enrolled in this study. These patient were randomly divided into two groups. The observed group were treated by neoadjuvant chemotherapy followed by radical hyterectomy and lymphonectomy. The other 50 cases were treated by operation as control group. The expression of CyclinD1 and nm23H1 were examined by immunohistochemistry using post-operation specimens. Results The total response rate of neoadjuvant chemotherapy was 75 %( CR+PR). The expression rate of CyclinD1 was 76 % in experimental group, and 54 % in control group(P 0.05). Conclusion The neoadjuvant chemotherapy was helpful for the patients with local advanced stage of cervical carcinoma. CyclinD1 may be one of the path of NACT, but nm23H1 may not related to NACT.