scholarly journals ASL-Perfusion for Intrinsic Brain Tumor Diagnosis. Analysis of 253 Patients.

2021 ◽  
Author(s):  
Artem Batalov ◽  
Natal'ya Zakharova ◽  
Igor' Pronin ◽  
Artem Belyaev ◽  
Eduard Pogosbekyan ◽  
...  
Keyword(s):  
Blood Flow ◽  
Sensitivity And Specificity ◽  
Low Grade ◽  
High Grade ◽  
Tumor Blood Flow ◽  
Supratentorial Gliomas ◽  
Significant Difference ◽  
Grade Ii ◽  
High Grade Gliomas ◽  
Grade Iii

Abstract Purpose The aim of the study was to evaluate the role of pseudo-continuous ASL-perfusion (pCASL-perfusion) in preoperative assessing of cerebral glioma grades. Methods The study group consisted of 253 patients aged 7 to 78 years with supratentorial gliomas (65 had low-grade gliomas (LGG), 188 – high-grade gliomas (HGG)). Maximal tumor blood flow (maxTBF) in small ROIs (20 mm2 ± 10 mm2) were evaluated by subsequently normalized tumor blood flow (nTBF) calculation which was compared with normal appearing white matter of center semiovale of the contralateral hemisphere. Results TBF and nTBF values were significantly differed in HGG and LGG groups, as well as grade II and grade III gliomas; grade III and grade IV gliomas (p < 0.001). ASL-perfusion has demonstrated both high sensitivity and specificity in differentiating LGG and HGG, grade II and grade III gliomas, but low sensitivity and specificity in distinguishing grade III and grade IV gliomas. We did not observe a significant difference in TBF in astrocytomas and oligodendrogliomas. Conclusion Current results demonstrate that 3D pCASL-perfusion is an effective diagnostic tool for preoperative differentiation of low and high grade gliomas.

scholarly journals Immuno-Phenotyping of High-Grade Glioma Infiltrating Immune Cells Reveals Grade Specific Differences in Cells of Myeloid Origin

2020 ◽  
Author(s):  
Raksha A. Ganesh ◽  
Jayashree V. Raghavan ◽  
Pranali Sonpatki ◽  
Divya Naik ◽  
Priyanka Arunachalam ◽  
...  
Keyword(s):  
Immune Cells ◽  
Immune Cell ◽  
Myeloid Cells ◽  
Suppressor Cells ◽  
High Grade Glioma ◽  
Low Grade ◽  
High Grade ◽  
High Grade Gliomas ◽  
Cell Phenotypes ◽  
Grade Iii

AbstractGliomas are heavily infiltrated with immune cells of myeloid origin. Past studies have shown that high-grade gliomas have a higher proportion of alternatively activated and suppressive myeloid cells when compared to low-grade gliomas, which correlate with poor prognosis. However, the differences in immune cell phenotypes within high-grade gliomas (between grade III and IV) are relatively less explored, and a correlation of phenotypic characteristics between immune cells in the blood and high grade tumors has not been performed. Additionally, myeloid cells of granulocytic origin present in gliomas remain poorly characterized. Herein, we address these questions through phenotypic characterizations of monocytes and neutrophils present in blood and tumors of individuals with glioblastoma (GBM, grade IV) or grade III gliomas. Our data show that CD163 expressing M2 monocytes are present in greater proportions in GBM tissue when compared to grade III glioma tissue. In addition, we observe that neutrophils are highly heterogeneous among individuals with glioma, and a greater proportion of granulocytic myeloid-derived suppressor cells are present in grade III gliomas when compared to GBM. Finally, we show that the expression levels of CD86 and CD63 showed a high correlation between blood and tumor, and suggest that these may be used as possible markers for prognosis.

scholarly journals Endocan serum levels in patients with low- and high-grade meningiomas: does this biomarker have an indicative role?

2021 ◽  
Vol 57 (1) ◽  
Author(s):  
Mohammad Javad Fattahi ◽  
Fatemeh Sedaghat ◽  
Mahyar Malekzadeh ◽  
Amir Ali Nejat ◽  
Maryam Poostkar ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Serum Levels ◽  
Control Group ◽  
High Grade ◽  
Significant Difference ◽  
Grade Ii ◽  
The Relationship ◽  
The Brain ◽  
Grade Iii

Abstract Background Meningiomas are one of the most common tumors of the brain and central nervous system. The key role of endocan in predicting tumor growth and prognosis has been shown for several types of cancers; however, this role in meningiomas has not been evaluated. In the current study, we investigated the relationship between endocan serum levels with low- and high-grade meningiomas. Results The serum level of endocan in the group with meningiomas was 283.34 (242.09-358.70) pg/ml and in the control group was 250.29 (207.56-329.71) pg/ml respectively (P = 0.172). Afterwards, patients were divided into three different groups (grades I, II, and III) and compared to the control. The level of endocan in the group with grade I of meningioma showed no significant difference compared to control individuals (P = 0.86). When patients with grade II and grade III compared with the control group, endocan serum levels were statistically significant (P = 0.002, P < 0.001 respectively). Moreover, our findings showed that the different grades of meningiomas were statistically significant compared to each other (P < 0.001) regarding endocan serum levels, meaning that the higher the grade, the higher the endocan serum levels. Conclusion Our findings revealed that higher grades of meningioma had higher endocan serum levels, however, the role of endocan in pathogenesis or progression of this type of tumor requiring further exclusively assessment.

scholarly journals Matriptase and Survivin Expression Associated with Tumor Progression and Malignant Potential in Breast Cancer of Chinese Women: Tissue Microarray Analysis of Immunostaining Scores with Clinicopathological Parameters

2008 ◽  
Vol 24 (2) ◽  
pp. 89-99 ◽  
Author(s):  
Wen-Chiuan Tsai ◽  
Chi-Hong Chu ◽  
Cheng-Pin Yu ◽  
Lai-Fa Sheu ◽  
Ann Chen ◽  
...  
Keyword(s):  
Invasive Ductal Carcinoma ◽  
Ductal Carcinoma ◽  
Survivin Expression ◽  
Normal Breast ◽  
Clinicopathological Parameters ◽  
Low Grade ◽  
High Grade ◽  
Ductal Hyperplasia ◽  
Grade Ii ◽  
Grade Iii

Objective: The aim of this study was to examine the expression of matriptase and survivin in breast carcinoma and correlate with clinicopathological parameters.Methods: Immunohistochemical analysis of matriptase and survivin were performed in tissue microarray slides of 290 cases, including 11 normal breast tissue; 27 fibrocystic disease; 17 fibroadenoma; 6 atypical ductal hyperplasia; 39 ductal carcinoma in situ, low grade (DCIS, low grade); 39 ductal carcinoma in situ, high grade (DCIS, high grade); 27 invasive ductal carcinoma, grade I (IDC, grade I); 78 invasive ductal carcinoma, grade II (IDC, grade II); and 46 invasive ductal carcinoma, grade III (IDC, grade III).Results: The average immunostaining scores of matriptase were 44.1 in normal breast tissue, 52.7 in fibrocystic disease, 76.5 in fibroadenoma, 81.7 in atypical ductal hyperplasia, 133.7 in low-grade DCIS, and 155.8 in high-grade DCIS. Among 151 breast IDC cases, the average immunostaining scores of matriptase were 172.7 in grade I, 211.7 in grade II, and 221.2 in grade III. Additionally, the average immunostaining scores of surviving also correlate with tumor grades and stages.Conclusions: Higher expressions of matriptase and survivin correlate significantly with clinicopathological parameters in breast cancer and the malignant potential in premalignant lesions. In addition, higher survivin expression had poorer prognosis of breast IDC cases.

IDH mutations as an early and consistent marker in low-grade astrocytomas WHO grade II and their consecutive secondary high-grade gliomas

2012 ◽  
Vol 108 (3) ◽  
pp. 403-410 ◽  
Author(s):  
Tareq A. Juratli ◽  
Matthias Kirsch ◽  
Katja Robel ◽  
Silke Soucek ◽  
Kathrin Geiger ◽  
...  
Keyword(s):  
Low Grade ◽  
High Grade ◽  
Who Grade ◽  
Idh Mutations ◽  
Grade Ii ◽  
High Grade Gliomas

Neurological tumours

2018 ◽  
Author(s):  
Christine Elwell ◽  
Kufre Sampson
Keyword(s):  
Low Grade ◽  
High Grade ◽  
Histological Grading ◽  
Nuclear Pleomorphism ◽  
Who Grade ◽  
Endothelial Proliferation ◽  
Grade Ii ◽  
Neuroepithelial Tumours ◽  
Who Grade Iii ◽  
Grade Iii

Neurological tumours are categorized by the WHO as follows: neuroepithelial tumours (gliomas, oligodendrogliomas, ependymomas, pineal parenchymal tumours, medulloblastoma, neuronal and neuroglial tumours); cranial and paraspinal nerve tumours (schwannoma, neurofibromas); meningeal tumours (meningiomas); lymphomas; germ cell tumours (germinoma, teratoma); sellar region tumours (cranipharyngioma); and metastases. The tumours are classified according to grade. The WHO histological grading scheme used for astrocytomas is based on mitoses, nuclear pleomorphism, necrosis, and endothelial proliferation. WHO Grade I and Grade II tumours are low-grade tumours, and WHO Grade III and Grade IV tumours are high-grade tumours.

scholarly journals P03.09 Real world management and prognosis of glioma patients:SYSUCC report from China

2019 ◽  
Vol 21 (Supplement_3) ◽  
pp. iii26-iii27
Author(s):  
D Li ◽  
Y Chen ◽  
C Guo ◽  
Q Yang ◽  
S Wu ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Real World ◽  
Cancer Center ◽  
Low Grade ◽  
High Grade ◽  
Who Grade ◽  
Low Grade Gliomas ◽  
Pathological Subtype ◽  
High Grade Gliomas ◽  
Grade Iii

Abstract Background: The conventional way of patient treatment should be following guidelines. While in clinical practice, patients received treatments very often away from suggested guideline. In this report, we reviewed glioma patients received real world treatment at Sun Yat-sen University Cancer Center (SYSUCC) and results of this patient series. Methods: Total of 1215 glioma patients received surgery at SYSUCC from 2000 to 2017 were enclosed for analysis. The pathologic diagnosis of patients has followed WHO classification (initially 2007 standard, than 2016 standard). Results: A total of 1001 newly diagnosed brain glioma patients were analyzed, including 90 cases WHO grade I, 307 grade II, 239 grade III and 365 grade IV. The median age of onset was 14 (1–75), 35 (2–69), 41 (8–82) and 50 (2–86) years old, respectively, for grade I, II, III and IV glioma patients. Tumor total resection was achieved in 567 patients (57.5%). Among all patients, 331 high-grade gliomas (54.8%) and 159 low-grade glioma (40.1%) received radiotherapy, whereas 285 high-grade gliomas (47.1%) and 80 low-grade tumors (20.2%) received chemotherapy. Among high-grade gliomas, the median OS of glioblastoma, anaplastic astrocytoma and anaplastic oligodendroglial tumors were 17.7 months (15.7–19.7 months), 33.7 months (24.0–43.4 months) and 110.6 months (43.5–177.7 months), respectively, whereas the median OS of low-grade gliomas was not reach. The 5-year survival rate of grade I, II, III and IV gliomas was 94.7%, 73.7%, 45.1% and 18.6%, respectively. Multivariate analysis identified that onset age, Karnofsky performance status, tumor location, preoperative seizure, pathological subtype, resection extent and post-surgical treatment were independent predictors of OS for patients with high-grade gliomas. Patients received post-surgical radiotherapy and (or) chemotherapy had better survival than those without adjuvant treatment (grade III: 53.3 vs. 20.6 months, p =0.012; grade IV: 22.9 vs. 12.3 months, p < 0.001). For low-grade gliomas, patients’ age, Ki-67 index, tumor subtype and resection extent were associated with clinical outcomes. Conclusions: Glioma patients received treatments do not always following guidelines in clinical practice. Although standard care for patients may beneficial for prognosis, personalized treatment may more acceptable for patients and even resulting better outcome which should keep in mind in routine clinical practice.

scholarly journals GLIOBLASTOMA MULTIFORME: THE UNIQUE AND FATAL BRAIN TUMOR

2020 ◽  
Author(s):  
Amartya Nandi ◽  
Sanjeeva Srivastava
Keyword(s):  
Brain Tumor ◽  
Glioblastoma Multiforme ◽  
Common Type ◽  
Low Grade ◽  
High Grade ◽  
Low Grade Gliomas ◽  
Nuclear Atypia ◽  
Grade Ii ◽  
Cns Cancer ◽  
Grade Iii

Glioblastomas are the most aggressive and most founded type of common type of CNS cancer which are mainly classified into 2 major groups i.e. low grade gliomas (LGG) and high grade gliomas (HGG) and exhibits both intra and inter tumor heterogeny LGG are showing low proliferation rate and further divided two sub types that are Grade I and Grade II which are commonly infiltrative and recur and they occur usually due to mutations in IDH-1 and IDH-2 genes. Whereas, HGG are further divided two sub types Grade III and Grade IV showing nuclear atypia and most aggressive necrosis and high angiogenesis rate.

The Added Value of Inflow-Based Vascular-Space-Occupancy and Diffusion-Weighted Imaging in Preoperative Grading of Gliomas

2021 ◽  
pp. 1-8
Author(s):  
Haimei Cao ◽  
Xiang Xiao ◽  
Jun Hua ◽  
Guanglong Huang ◽  
Wenle He ◽  
...  
Keyword(s):  
Diagnostic Accuracy ◽  
Roc Curve ◽  
Diffusion Weighted Imaging ◽  
Low Grade ◽  
High Grade ◽  
Mr Images ◽  
Vascular Space ◽  
Diffusion Weighted ◽  
High Grade Gliomas ◽  
And Diffusion

Objectives: The present study aimed to study whether combined inflow-based vascular-space-occupancy (iVASO) MR imaging (MRI) and diffusion-weighted imaging (DWI) improve the diagnostic accuracy in the preoperative grading of gliomas. Methods: Fifty-one patients with histopathologically confirmed diffuse gliomas underwent preoperative structural MRI, iVASO, and DWI. We performed 2 qualitative consensus reviews: (1) structural MR images alone and (2) structural MR images with iVASO and DWI. Relative arteriolar cerebral blood volume (rCBVa) and minimum apparent diffusion coefficient (mADC) were compared between low-grade and high-grade gliomas. Receiver operating characteristic (ROC) curve analysis was performed to compare the tumor grading efficiency of rCBVa, mADC, and the combination of the two parameters. Results: Two observers diagnosed accurate tumor grade in 40 of 51 (78.4%) patients in the first review and in 46 of 51 (90.2%) in the second review. Both rCBVa and mADC showed significant differences between low-grade and high-grade gliomas. ROC analysis gave a threshold value of 1.52 for rCBVa and 0.85 × 10−3 mm2/s for mADC to provide a sensitivity and specificity of 88.0 and 81.2% and 100.0 and 68.7%, respectively. The area under the ROC curve (AUC) was 0.87 and 0.85 for rCBVa and mADC, respectively. The combination of rCBVa and mADC values increased the AUC to 0.92. Conclusion: The combined application of iVASO and DWI may improve the diagnostic accuracy of glioma grading.

Sign in / Sign up

Export Citation Format

Share Document