A Hospital Based Retrospective Assessment of the Clinicopathological Characteristics of Meningiomas at I.G.I.M.S., Patna.

AbstractAim: The aim of the present study was to study the clinicopathological characteristics of intracranialmeningiomas.Methods: This was a retrospective study conducted in the Departments of Neurosurgery at Indira GandhiInstitute of Medical Sciences, Patna, Bihar, India. The study period was of 4 years, between January 2019 toFebruary 2023. All the patients diagnosed as intracranial meningiomas in our department were included in thestudy.Results: A total of 200 patients were included in the study. Meningothelial meningioma was most commonhistological type (40%, 80/200), followed by transitional (20%, 40/200) and psamommatous (10%). The WHOGrade I was seen in 180 (90%) patients, 10 (5%) had Grade II, and 10 (5%) had Grade III tumors. On analyzingcases of recurrence, we noticed a statistically significant relation with Simpson grade of excision. Of 200patients, 140 (70%) were female and 60 (30%) were male. On the correlation of gender ratio with age, we foundthat females predominated males in the 4th, 5th, and 6th decade and this predominance is less pronounced inelderly and pediatric patients. Convexity meningioma was the most common subtype of meningioma, followedby parasagittal. We found that higher grade WHO Grade II and III meningiomas are more common in males asopposed to Grade I lesions which are more common in females, and the difference was statistically significant.Conclusion: Meningiomas are benign tumors which are more common in females. The supratentorial location ismore common than infratentorial, pediatric meningiomas are aggressive, and recurrence of meningiomasdepends on the histological grade and Simpson grade of excision