scholarly journals Retroperitoneum ganglioneuroma: imaging features and surgical outcomes of 35 cases at a Chinese Institution

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Qian-Wen Zhang ◽  
Tao Song ◽  
Pan-Pan Yang ◽  
Qiang Hao
Keyword(s):  
Blood Loss ◽  
Tumor Size ◽  
Preoperative Evaluation ◽  
Univariate Analysis ◽  
Vena Cava ◽  
Image Features ◽  
Imaging Features ◽  
Coronal Image ◽  
Surgical Blood Loss ◽  
Significant Difference

Abstract Background The preoperative evaluation is crucial for diagnosis and surgical plan of retroperitoneum ganglioneuroma (GN). In this study, we reviewed a relatively large series of histopathological proved retroperitoneum GN cases, summarized the imaging features and further depicted risk factors of increased surgical blood loss. Methods A total of 35 (18 male, 17 female) patients were retrospectively enrolled from January 2012 to June 2019 at our institution. Among them, 24 patients had undergone CT scans and 19 patients had undergone MR examination before treatment. The clinical and radiological features were analyzed and the relationships between image features and surgical blood loss were evaluated. Results The media age of the involved 35 patients was 40 years (range, 14–66 years). The histological tumor size was 10.12 ± 4.56 cm for average. Retroperitoneum GN was relatively low density on unenhanced CT images and showed delayed progressive enhancement on enhanced CT and MR images. The whorled sign could be seen in 14 patients. The vessel encasement sign could be found in 17 patients. Univariate analysis revealed maximal tumor size measured on axial image, maximal tumor size measured on coronal image, encasing one or both renal pedicles, encasing the aorta and/or vena cava and whorled sign on MRI showed significant difference between the blood loss ≥ 400 ml and blood loss < 400 ml group. Logistic regression further detected that maximal tumor size measured on axial images (OR: 1.12; 95% CI: 1.02–1.24; P = 0.023) and encasing one or both renal pedicles (OR: 22.39; 95% CI: 1.35–372.99; P = 0.030) were independently correlated with surgical blood loss. Conclusions Preoperative CT and MR imaging analysis was valuable for both diagnosis and surgical risk prediction of retroperitoneum GN.

scholarly journals Prediction of Microvascular Invasion in Hepatocellular Carcinoma: Preoperative Gd-EOB-DTPA-Dynamic Enhanced MRI and Histopathological Correlation

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Mengqi Huang ◽  
Bing Liao ◽  
Ping Xu ◽  
Huasong Cai ◽  
Kun Huang ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Prediction Model ◽  
Tumor Size ◽  
Univariate Analysis ◽  
Microvascular Invasion ◽  
Arterial Phase ◽  
Hepatobiliary Phase ◽  
Imaging Features ◽  
Tumor Margin ◽  
Enhanced Mri

Objective. To investigate the imaging features observed in preoperative Gd-EOB-DTPA-dynamic enhanced MRI and correlated with the presence of microvascular invasion (MVI) in hepatocellular carcinoma (HCC) patients. Methods. 66 HCCs in 60 patients with preoperative Gd-EOB-DTPA-dynamic enhanced MRI were retrospectively analyzed. Features including tumor size, signal homogeneity, tumor capsule, tumor margin, peritumor enhancement during mid-arterial phase, peritumor hypointensity during hepatobiliary phase, signal intensity ratio on DWI and apparent diffusion coefficients (ADC), T1 relaxation times, and the reduction rate between pre- and postcontrast enhancement images were assessed. Correlation between these features and histopathological presence of MVI was analyzed to establish a prediction model. Results. Histopathology confirmed that MVI were observed in 17 of 66 HCCs. Univariate analysis showed tumor size (p=0.003), margin (p=0.013), peritumor enhancement (p=0.001), and hypointensity during hepatobiliary phase (p=0.004) were associated with MVI. A multiple logistic regression model was established, which showed tumor size, margin, and peritumor enhancement were combined predictors for the presence of MVI (α=0.1). R2 of this prediction model was 0.353, and the sensitivity and specificity were 52.9% and 93.0%, respectively. Conclusion. Large tumor size, irregular tumor margin, and peritumor enhancement in preoperative Gd-EOB-DTPA-dynamic enhanced MRI can predict the presence of MVI in HCC.

scholarly journals Retrospective analysis of LNM risk factors and the effect of chemotherapy in early colorectal cancer: A Chinese multicenter study

BMC Cancer ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Chunyan Zeng ◽  
Dandan Xiong ◽  
Fei Cheng ◽  
Qingtian Luo ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Factors ◽  
Multicenter Study ◽  
Tumor Size ◽  
Lymphovascular Invasion ◽  
Univariate Analysis ◽  
Tumor Location ◽  
Early Colorectal Cancer ◽  
Depth Of Invasion ◽  
Significant Difference

Abstract Background Estimating the risk of lymph node metastasis (LNM) is crucial for determining subsequent treatments following curative resection of early colorectal cancer (ECC). This multicenter study analyzed the risk factors of LNM and the effectiveness of postoperative chemotherapy in patients with ECC. Methods We retrospectively analyzed the data of 473 patients with ECC who underwent general surgery in five hospitals between January 2007 and October 2018. The correlations between LNM and sex, age, tumor size, tumor location, endoscopic morphology, pathology, depth of invasion and tumor budding (TB) were directly estimated based on postoperative pathological analysis. We also observed the overall survival (OS) and recurrence in ECC patients with and without LNM after matching according to baseline measures. Results In total, 473 ECC patients were observed, 288 patients were enrolled, and 17 patients had LNM (5.90%). The univariate analysis revealed that tumor size, pathology, and lymphovascular invasion were associated with LNM in ECC (P = 0.026, 0.000, and 0.000, respectively), and the multivariate logistic regression confirmed that tumor size, pathology, and lymphovascular invasion were risk factors for LNM (P = 0.021, 0.023, and 0.001, respectively). There were no significant differences in OS and recurrence between the ECC patients with and without LNM after matching based on baseline measures (P = 0.158 and 0.346, respectively), and no significant difference was observed between chemotherapy and no chemotherapy in ECC patients without LNM after surgery (P = 0.729 and 0.052). Conclusion Tumor size, pathology, and lymphovascular invasion are risk factors for predicting LNM in ECC patients. Adjuvant chemotherapy could improve OS and recurrence in patients with LNM but not always in ECC patients without LNM.

scholarly journals Application of Laparoscopic Radical Resection for Type III and IV Hilar Cholangiocarcinoma Treatment

2020 ◽  
Vol 2020 ◽  
pp. 1-6 ◽  
Author(s):  
Sulai Liu ◽  
Xinyu Liu ◽  
Xuepeng Li ◽  
Ou Li ◽  
Weimin Yi ◽  
...  
Keyword(s):  
Bile Duct ◽  
Blood Loss ◽  
Tumor Size ◽  
Hilar Cholangiocarcinoma ◽  
Preoperative Evaluation ◽  
Operation Time ◽  
Bile Leakage ◽  
Radical Resection ◽  
Operative Strategy ◽  
Type Iii

Background. This study is aimed at investigating the feasibility and safety of the laparoscopic radical resection for treating type III and IV hilar cholangiocarcinoma (III/IV Hilar C). Methods. Six patients with III/IV Hilar C were enrolled in our hospital. All patients underwent total laparoscopic surgery, including basic surgery (laparoscopic gallbladder, hilar bile duct, and common bile duct resection and hepatoduodenal ligament lymph node dissection) combined with left hepatic and caudate lobe resection/portal resection. The tumor size, operation time, intraoperative blood loss, and postoperative complications were observed. The follow-up of the patients after discharge was recorded. Results. Surgery was successfully completed in 6 patients. We found that the tumor size of 6 patients ranged from 1.5 to 3.6 cm, with 4 lymph nodes. The operation time was 540-660 minutes, and the blood loss was 300-500 ml. One patient developed bile leakage after surgery, healed within 2 weeks after drainage. The postoperative hospital stay was 16 (13-24) days. There were 4 cases of negative bile duct margin tumor, 1 case was positive, and 1 case was not reported. All 6 patients were discharged smoothly without perioperative death. Regular examinations were conducted every 3 months after discharge, and the median duration was 7 months. Only 1 patient had a marginal dysplasia, and 5 patients had no obvious signs of recurrence. Conclusions. Application of laparoscopic radical resection for III/IV Hilar C is safe and feasible and has good short-term efficacy with adequate preoperative evaluation, appropriate case selection, and precise operative strategy.

scholarly journals Retrospective analysis for the LNM risk factors and effect of chemotherapy for the early colorectal cancer: A Chinese multicenter study

2020 ◽  
Author(s):  
Chunyan Zeng ◽  
Dandan Xiong ◽  
Fei Cheng ◽  
Qingtian Luo ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Factors ◽  
Multicenter Study ◽  
Tumor Size ◽  
Lymphovascular Invasion ◽  
Univariate Analysis ◽  
Tumor Location ◽  
Early Colorectal Cancer ◽  
Depth Of Invasion ◽  
Significant Difference

Abstract Background Estimating the risk of lymph node metastasis (LNM) is crucial for determining subsequent treatments following curative resection of early colorectal cancer (ECC). This multicenter study analyzed the risk factors of LNM and the effectiveness of postoperative chemotherapy in patients with ECC.Methods We retrospectively analyzed the data of 473 patients with ECC who underwent general surgery in five hospitals between January 2007 and October 2018. The correlations between LNM and sex, age, tumor size, tumor location, endoscopic morphology, pathology, depth of invasion and tumor budding (TB) were directly estimated based on postoperative pathological analysis. We also observed the overall survival (OS) and recurrence in ECC patients with and without LNM after matching according to baseline measures. Results In total, 473 ECC patients were observed, 288 patients were enrolled, and 17 patients had LNM (5.90%). The univariate analysis revealed that tumor size, pathology, and lymphovascular invasion were associated with LNM in ECC (P=0.026, 0.000, and 0.000, respectively), and the multivariate logistic regression confirmed that tumor size, pathology, and lymphovascular invasion were risk factors for LNM (P=0.021, 0.023, and 0.001, respectively). There were no significant differences in OS and recurrence between the ECC patients with and without LNM after matching based on baseline measures (P=0.158 and 0.346, respectively), and no significant difference was observed between chemotherapy and no chemotherapy in ECC patients without LNM after surgery (P=0.729 and 0.052).Conclusion Tumor size, pathology, and lymphovascular invasion are risk factors for predicting LNM in ECC patients. Adjuvant chemotherapy could improve OS and recurrence in patients with LNM but not always in ECC patients without LNM.

scholarly journals Retrospective analysis for the LNM risk factors and effect of chemotherapy for the early colorectal cancer: A Chinese multicenter study

2020 ◽  
Author(s):  
Chunyan Zeng ◽  
Dandan Xiong ◽  
Fei Cheng ◽  
Qingtian Luo ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Factors ◽  
Multicenter Study ◽  
Tumor Size ◽  
Lymphovascular Invasion ◽  
Univariate Analysis ◽  
Tumor Location ◽  
Early Colorectal Cancer ◽  
Depth Of Invasion ◽  
Significant Difference

Abstract Background Estimating the risk of lymph node metastasis (LNM) is crucial for determining subsequent treatments following curative resection of early colorectal cancer (ECC). This multicenter study analyzed the risk factors of LNM and the effectiveness of postoperative chemotherapy in patients with ECC.Methods We retrospectively analyzed the data of 473 patients with ECC who underwent general surgery in five hospitals between January 2007 and October 2018. The correlations between LNM and sex, age, tumor size, tumor location, endoscopic morphology, pathology, depth of invasion and tumor budding (TB) were directly estimated based on postoperative pathological analysis. We also observed the overall survival (OS) and recurrence in ECC patients with and without LNM after matching according to baseline measures. Results In total, 473 ECC patients were observed, 288 patients were enrolled, and 17 patients had LNM (5.90%). The univariate analysis revealed that tumor size, pathology, and lymphovascular invasion were associated with LNM in ECC (P=0.026, 0.000, and 0.000, respectively), and the multivariate logistic regression confirmed that tumor size, pathology, and lymphovascular invasion were risk factors for LNM (P=0.021, 0.023, and 0.001, respectively). There were no significant differences in OS and recurrence between the ECC patients with and without LNM after matching based on baseline measures (P=0.158 and 0.346, respectively), and no significant difference was observed between chemotherapy and no chemotherapy in ECC patients without LNM after surgery (P=0.729 and 0.052).Conclusion Tumor size, pathology, and lymphovascular invasion are risk factors for predicting LNM in ECC patients. Adjuvant chemotherapy could improve OS and recurrence in patients with LNM but not always in ECC patients without LNM.

Two Doses of Intravenous Tranexamic Acid Offers No Benefit over One Dose in Total Hip Arthroplasty

2019 ◽  
Vol 04 (01) ◽  
pp. 001-006
Author(s):  
Ryan S. Charette ◽  
Jenna A. Bernstein ◽  
Matthew Sloan ◽  
Corbyn M. Nchako ◽  
Atul F. Kamath ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Blood Loss ◽  
Tranexamic Acid ◽  
Hip Arthroplasty ◽  
Univariate Analysis ◽  
High Volume ◽  
Primary Outcome Measure ◽  
Transfusion Rate ◽  
Total Hip ◽  
Significant Difference

AbstractTranexamic acid (TXA) has been shown to reduce blood loss and transfusions in total hip arthroplasty (THA). There is no consensus on the ideal number of doses that best reduces blood loss while limiting complications. Our study compared one versus two doses of intravenous TXA in primary THA and its effect on blood transfusion rate. We retrospectively reviewed patients undergoing primary THA at our two high-volume arthroplasty centers from 2013 to 2016. Patients were included if they underwent unilateral primary THA, and received one or two doses of TXA. Patients receiving therapeutic anticoagulation were excluded. Our primary outcome measure was postoperative transfusion rate. Secondary outcomes included blood loss, length of stay (LOS), rate of deep vein thrombosis/pulmonary embolism (DVT/PE), readmission, and reoperation. A total of 1,273 patients were included; 843 patients received one dose of TXA and 430 patients received two TXA doses. Univariate analysis demonstrated no significant difference in transfusion rate when administering one versus two doses. There was no significant difference in LOS, or rates of DVT/PE, readmission, and reoperation. When comparing patients receiving aspirin prophylaxis, there was a significantly decreased blood volume loss with two doses (1,360 vs. 1,266 mL, mean difference = 94 mL; p = 0.017). In patients, undergoing primary unilateral THA, there is no difference in postoperative transfusion rate with one or two doses of intravenous TXA. There was no difference in thromboembolic events. Given the added cost without clear benefit, these findings support one rather than two doses of TXA during primary THA.

scholarly journals Retrospective analysis for the LNM risk factors and effect of chemotherapy for the early colorectal cancer: A Chinese multicenter study

2020 ◽  
Author(s):  
Chunyan Zeng ◽  
Dandan Xiong ◽  
Fei Cheng ◽  
Qingtian Luo ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Factors ◽  
Multicenter Study ◽  
Tumor Size ◽  
Vascular Invasion ◽  
Univariate Analysis ◽  
Early Colorectal Cancer ◽  
Base Line ◽  
Depth Of Invasion ◽  
Significant Difference

Abstract Background Estimating the risk of lymph node metastasis (LNM) is crucial for determining subsequent treatments following curative resection of early colorectal cancer (ECC). This multicenter study analyzed the risk factors for LNM and the effectiveness of postoperative chemotherapy in patients with ECC.MethodsWe retrospectively analyzed the data of 473 patients with ECC who underwent general surgery in five hospitals between January, 2007 and October, 2018. The correlations between LNM and gender, age, tumor size, tumor location, endoscopic morphology, Pathology, depth of invasion and tumor budding (TB), were estimated directly based on postoperative pathology results. We also observed the overall survivals (OS) and recurrences between ECC patients with and without LNM after the base-line being matched.Results There were 473 ECC patients observed, 288 patients of them were enrolled, 17 patients had LNM (5.90%). Univariate analysis revealed that tumor size, pathology, lympho-vascular invasion were associated with LNM in ECC (P = 0.026, 0.000, 0.000, respectively), and multivariate logistic regression confirmed that tumor size, pathology, lympho-vascular invasion were risk factors for LNM (P = 0.021, 0.023, 0.001, respectively). There were no significant differences for the OS and recurrence between the ECC patients with and without LNM whose base-lines were matched (P = 0.158,0.346, respectively), neither no significant difference between chemotherapy and no chemotherapy ECC patients without LNM after surgery (P = 0.729,0.052).Conclusion Tumor size, pathology, lympho-vascular invasion were risk factors for predicting LNM in ECC patients. Adjuvant chemotherapy could improve the overall survival and recurrence in patients with LNM, but no necessary for the ECC patients without LNM.

scholarly journals Retrospective analysis for the LNM risk factors and effect of chemotherapy for the early colorectal cancer: A Chinese multicenter study

2020 ◽  
Author(s):  
Chunyan Zeng ◽  
Dandan Xiong ◽  
Fei Cheng ◽  
Qingtian Luo ◽  
Qiang Wang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Risk Factors ◽  
Multicenter Study ◽  
Tumor Size ◽  
Lymphovascular Invasion ◽  
Univariate Analysis ◽  
Tumor Location ◽  
Early Colorectal Cancer ◽  
Depth Of Invasion ◽  
Significant Difference

Abstract Background Estimating the risk of lymph node metastasis (LNM) is crucial for determining subsequent treatments following curative resection of early colorectal cancer (ECC). This multicenter study analyzed the risk factors of LNM and the effectiveness of postoperative chemotherapy in patients with ECC.Methods We retrospectively analyzed the data of 473 patients with ECC who underwent general surgery in five hospitals between January 2007 and October 2018. The correlations between LNM and sex, age, tumor size, tumor location, endoscopic morphology, pathology, depth of invasion and tumor budding (TB) were directly estimated based on postoperative pathology results. We also observed the overall survival (OS) and recurrence in ECC patients with and without LNM after matching according to baseline measures. Results In total, 473 ECC patients were observed, 288 patients were enrolled, and 17 patients had LNM (5.90%). The univariate analysis revealed that tumor size, pathology, and lymphovascular invasion were associated with LNM in ECC (P=0.026, 0.000, and 0.000, respectively), and the multivariate logistic regression confirmed that tumor size, pathology, and lymphovascular invasion were risk factors for LNM (P=0.021, 0.023, and 0.001, respectively). There were no significant differences in OS and recurrence between the ECC patients with and without LNM after matching based on baseline measures (P=0.158 and 0.346, respectively), and no significant difference was observed between chemotherapy and no chemotherapy in ECC patients without LNM after surgery (P=0.729 and 0.052).Conclusion Tumor size, pathology, and lymphovascular invasion are risk factors for predicting LNM in ECC patients. Adjuvant chemotherapy could improve OS and recurrence in patients with LNM but not always in ECC patients without LNM.

scholarly journals T1a renal cell carcinoma on unenhanced CT: analysis of detectability and imaging features

2019 ◽  
Vol 8 (5) ◽  
pp. 205846011984970
Author(s):  
Aiko Gobara ◽  
Takeshi Yoshizako ◽  
Rika Yoshida ◽  
Megumi Nakamura ◽  
Hiroaki Shiina ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Tumor Size ◽  
Predictive Value ◽  
Renal Cell ◽  
Characteristic Curve ◽  
Imaging Features ◽  
Unenhanced Ct ◽  
Significant Difference ◽  
Ct Analysis

Background Increasing use of unenhanced computed tomography (CT) has been associated with the increasing incidental detection of renal cell carcinoma (RCC) at an earlier stage. Purpose To evaluate the characteristics in detecting and differentiating T1a RCCs on unenhanced CT. Material and Methods We retrospectively reviewed 68 patients with 68 T1a RCCs and 39 benign regions. Two radiologists interpreted the images on unenhanced axial CT and performed a blinded and independent review of T1a RCCs. The readers evaluated the presence of RCC and differentiated the detected lesions. Results The consensus of two readers detected 53 (78%) RCCs. Of the 53 detected RCCs, 42 (62%) RCCs were correctly diagnosed and 11 (16%) masses were misdiagnosed as benign. Of the 39 benign regions, 29 (74%) cysts were diagnosed correctly, but 10 (26%) cysts were misdiagnosed as malignant. The following values of the radiologists were obtained by consensus: sensitivity = 61.8% (42/68); specificity = 74.4% (29/39); positive predictive value = 80.8% (42/52); negative predictive value = 55.0% (29/55); accuracy = 66.4% (71/107). The receiver operating characteristic curve of consensus was 0.754. Inter-observer correlation was κ = 0.849. There was a significant difference in tumor size ( P = 0.019) and the contour type of tumor ( P = 0.0207) between correctly diagnosed RCCs and not correctly diagnosed RCCs. Conclusion Our findings showed that tumor size and contour type could affect the detection and differentiation of T1a RCC on unenhanced CT. To detect and differentiate T1a RCC on unenhanced CT is difficult. However, the findings from this study may help detection of RCCs on unenhanced CT.

Prognostic Value of S-Phase Fraction in 920 Breast Cancer Patients: Focus on T1N0 Status

2003 ◽  
Vol 18 (4) ◽  
pp. 273-279 ◽  
Author(s):  
R. Largillier ◽  
M. Namer ◽  
A. Ramaioli ◽  
J.M. Ferrero ◽  
N. Magné ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Overall Survival ◽  
Cancer Patients ◽  
Tumor Size ◽  
Cox Model ◽  
Univariate Analysis ◽  
S Phase ◽  
Phase Fraction ◽  
Breast Cancer Patients ◽  
Significant Difference

The aim of this study was to reexamine the prognostic role of tumor cell kinetics measured by S-phase fraction (SPF) and to establish its clinically relevant threshold values. SPF was determined by flow cytometry in a group of 920 consecutive breast cancer patients, all followed at our institute for 10 years (1988 to 1998). Mean age was 60.5 years (27–89 years). Median follow-up was 63 months (3–150 months). All patients had initial surgical treatment. SPF quartiles were: Q1=3.08%, median value = 5.98%, Q3=10.22%. A significant difference in overall specific survival was obtained between two populations divided by a cutoff at Q1 (p<0.0001). A multifactorial analysis including SPF and known prognostic factors such as tumor size, node status, histological grade, ER and PR status was performed using the Cox model in a population of 719 patients: univariate analysis showed that each of these factors had significant influence on overall survival. Multivariate analysis selected three of them, ranked by decreasing order of hazard ratio (HR) value: SPF (HR: 3.88, p<0.001), tumor size (HR: 2.49, p<0.001) and nodal status (HR: 2.28, p<0.001). In addition, when tumors were stratified according to SPF quartile values, there were statistically different overall survival curves in patients with small tumors (<2 cm) and in axillary node-negative patients.

Sign in / Sign up

Export Citation Format

Share Document