The contribution of contrast-enhanced spectral mammography in detecting breast carcinoma of dense breasts / 中华放射学杂志

Objective To assess the contribution of contrast-enhanced spectral mammography (CESM) in detecting breast carcinoma of dense breasts. Methods To retrospectively analyze the imaging and clinical data of 52 female patients with breast carcinoma which were confirmed by pathology in Tai'an Central Hospital of Shandong Province from April 2017 to April 2018.All cases classified as dense or uneven dense breasts by DM examination underwent Ultrasound (US), digital mammography (DM), CESM, dynamic contrast enhanced MRI (DCE-MRI).The breast imaging report and data system (BI-RADS) and breast density classification were both evaluated using the 5th edition of BI-RADS. The efficacy of US, DM, DM+CESM, DCE-MRI in detecting breast carcinoma (BI-RADS 5) was evaluated by χ2 test. Results Histopathology confirmed that 87 lesions were malignant and 35 lesions were benign. The sensitivity of US, DM, DM +CESM, DCE-MRI were 66.67％(58/87), 64.37％(56/87), 100.00％(87/87), 100.00％(87/87) and the specificity were 94.28％(33/35), 74.28％(26/35), 85.71％(30/35), 51.43％(18/35), respectively. There was statistically significant difference in specificity (χ2=9.545, P=0.002) and BI-RADS 5 category, detection 39.08％(34/87), 22.99％(20/87), respectively (χ2=5.263, P=0.022) between the DM + CESM group and DCE-MRI group. Conclusion In dense breasts, CESM has a high application value in breast carcinoma diagnosis.

Research progress of relation between Hippo-YAP signaling pathway and tumor / 肿瘤研究与临床

The Hippo-YAP signaling pathway,an important signaling pathway of tumor suppressor,is featured by functions of adjusting the organ size and maintaining the dynamic balance between cell proliferation and apoptosis.Several researches have revealed that the Hippo-YAP signaling pathway can affect cell proliferation and apoptosis so as to participate in the development of tumor.This paper will review the effect and mechanism of Hippo-YAP signaling pathway in tumor.

Expressions of MMP-7 and bFGF and their correlations with tumor interstitial microvascular density ;and cancer metastasis in NSCLC / 国际肿瘤学杂志

Objective To investigate the expressions of matrix metallopro-teinase-7 (MMP-7),basic fibroblast growth factor (bFGF)in NSCLC,and to elucidate the correlations among MMP-7,bFGF and MVD, as well as their relationships with cancer metastasis in NSCLC.Methods The expressions of MMP-7,bFGF and MVD were detected by immunohistochemical SP method in 80 cases of NSCLC and 40 cases of normal lung tissue,compare the expression of MMP-7 and bFGF in NSCLC and normal lung tissue,and then invest the rela-tionship between their expression and lymph node metastasis in NSCLC.The MVD was investigated within the CD34 positive slides,check the relationship between MVD and the expression of MMP-7 ,bFGF in NSCLC, and also its relationship with histology type,differentiation degree,lymph node metastasis and TNM stage. Results The positive ratesof MMP-7 and bFGF were significantly higher in NSCLC than those in normal lung tissue (70.0% vs 1 2.5%,χ2 =35.276,P =0.000;65.0% vs 1 0.0%,χ2 =32.41 1 ,P =0.000).The posi-tive rates of MMP-7 and bFGF were also significantly higher in group with lymph node metastasis compared to those group without lymph node metastasis (83.0% vs 51 .5%,χ2 =9.1 39,P =0.003;80.9% vs 42.4%,χ2 =1 2.584,P =0.000).The numbers of MVD were significantly higher in cases with MMP-7 and bFGF posi-tive expressions than those in cases with MMP-7 and bFGF negative expressions (46.78 ±1 1 .1 1 vs 31 .1 2 ± 7.62,t =5.831 ,P =0.000;45.05 ±1 0.97 vs 34.77 ±8.56,t =5.364,P =0.000).The number of MVD in group with lymph node metastasis was also significantly higher than that in group without lymph node metasta-sis (61 .32 ±21 .61 vs 40.52 ±1 8.31 ,t =3.865,P =0.008).The number of MVD in staging Ⅲ-Ⅳ group was significantly higher than that in stagingⅠ-Ⅱgroup (55.28 ±1 5.64 vs 41 .73 ±1 6.48,t =2.531 ,P =0.01 3).Conclusion The expression levels of MMP-7 and bFGF in NSCLC are high,and the positive rates of MMP-7 and bFGF are correlated with the lymphnode metastasis.The numbers of MVD are significantly higher in cases with MMP-7 and bFGF positive expressions than those in cases with MMP-7 and bFGF negative expre-ssions.MVD is correlated with lymph node metastasis and the TNM stage.It suggests that the expressions of MMP-7,bFGF and MVD may involve in the invasion and metastasis of NSCLC.

Solitary Pulmonary Nodule:HRCT Typing and Pathology / 实用放射学杂志

Objective To evaluate HRCT typing of solitary pulmonary nodule with resected.Methods 30 cases with solitary plumonary nodules (totally 41) were undergone CT and HRCT scan befor operation.HRCT appearances were retrospectively analyzed and categorized into two types: typeⅠ ground-glass opacity (pure ground-glass opacity, mixed lower opacity, central high opacity with ground opacity ), typeⅡ pure solid opacity.Results TypeⅠ:14 nodules included bronchioloalveolar cell carcinoma (9 nodules) , adenocarcinoma (3 nodules),inflammatory granuloma (1 nodule) and adenoma (1 nodule).TypeⅡ : 27 nodules included adenocarcinoma(13 nodules),bronchioloalveolar cell carcinoma(4 nodules), squamous cell carcinoma(3 nodules),small cell lung cancer(1 nodule),adenoma(2 nodules),tuberculosis(2 nodules), inflammatory granuloma(1 nodule) and hamartoma(1 nodule). Among nodules with resected, ground-glass opacity was found more frequently in bronchioloalveolar cell carcinoma than in non- bronchioloalveolar cell carcinoma (P=0.002).No significant difference in ground-glass opacity existed between tumor lesions and non-tumor lesions (P=0.282) or adenocarcinoma and non-adenocarcinoma (P=0.146).Conclusion In the findings of HRCT in solitary pulmonary nodules,the nodules of ground-glass opacity find more frequently in bronchioloalveolar cell carcinoma than that in other lesions.