DOI: 10.36347/sjmcr.2021.v09i04.020

Pages: 373-383

Objective: To analyze the contribution of cross-sectional imaging (CT and MRI) in the etiologic and topographic diagnosis of encephalic meningiomas. Material and methods: Retrospective study of 142 cases of encephalic meningiomas collected over an 11 year period between January 2004 and November 2016. 73 patients underwent CT scans without and with iodinated contrast injection, and brain MRI was performed in 69 patients in sagittal T1, axial T2, and flair sequences and in multiplanar sequences after gadolinium injection. Results: The average age of our patients was 45.10 years with extremes ranging from 12 to 80 years, with a clear female predominance (75%). The meningiomas were located in the convexity in 37% of cases, at the base of the skull in 21% of cases, in the false brain and para sagittal in 10% of cases. 60% of the meningiomas were of meningothelial type. Conclusion: Meningiomas are benign tumors developed from arachnoid cells. They represent 15% of intracranial tumors, and are supratentorial in 90% of cases. Through our series and a review of the literature, we analyze the interest of CT and MRI in the topographic diagnosis, lesion assessment and follow-up of meningiomas.