· ​ It is the most common primary brain tumor in adults, originating from the meninges, the membrane layers surrounding the brain and spinal cord. Approximately 80-85% of cases fall into the World Health Organization (WHO) Grade 1 category and are benign (slow-growing). Rather than invading brain tissue, they generally exert pressure by compressing it from the outside. · In daily radiology practice, small asymptomatic meningiomas are frequently encountered as inci