Introduction: Meningioma is one of the most common cerebral tumors. In some cases, pathologic findings, imaging findings, and intraoperative findings among the meningioma are incongruous. A better understanding of these can help improve the prognosis of patients. The purpose of this study was to compare the intraoperative findings and pathologic grading of brain meningioma. Material & methods: This cross-sectional descriptive-analytical study was performed on patients with surgical indication of meningioma for 2 years. Epidemiological, demographic, baseline clinical checklist, intraoperative macroscopic findings, imaging and pathologic findings were completed for patients. Data were analyzed by SPSS 18 software. Results: 40 patients with meningioma were included in the study. The mean age of the patients was 51.23±1.8 years. Calcification was seen in 24 patients (60%). Tumor necrosis was seen in 3 patients (7.5%) and cysts in 2 patients (5%). Osteogenesis (bone formation) and bone erosion were seen in 13 (32.5%) and 8 (20%) of patients, respectively. The mean number of vessels in tumors was 4.8±2.1. There was a significant correlation between the number of vessels with pathological grading and positive correlation coefficient (CC = 0.98). (P = 0.001).

Pathological Grading, Meningioma.