A Retrospective Study of Incidence, Pathological Nature &Surgical Outcome of Intracranial Meningiomas

ABSTRACT

Background: Although meningiomas represent only ~20% ofintracranial tumors, they have been referred to as “the soul ofneurosurgery.” Meningiomas are the most common nonglialprimary tumors of the central nervous system, representing 15to 20% of primary brain tumors. Peak incidence occursbetween the fourth and sixth decades. The female/male ratio isreported variously as 21 to 41. Management of meningiomacan be done either by surgery, by radiotherapy or by medicaltreatment or combination of any of three approaches.Aims & objectives: The aims & objectives of this study wereto identify the incidence and pathological nature of intracranialmeningiomas. Also to study surgical outcomes of patientsundergoing intracranial meningioma surgery.Methods & Materials This study was done at neurosurgerydepartment at a tertiary care centre. Retrospective analysis ofdata collected through hospital information system of patientsoperated for intracranial meningiomas between September2014 & March 2017.Results: In present study of 100 cases of intracranialmeningioma, majority were occurring at convexity 34 (34%)followed by falcine 14 (14%), sphenoid wing 10 (10%) etc. Outof 100 cases around 70% cases occurred in 4th, 5th and 6thdecade. There was a female preponderance in our series witha malefemale ratio of 11.63. The most commonhistopathological type of tumor was meningothelialmeningioma (38%) followed by others. The commonestcomplication noted in present series was post-operative limbweakness either hemiparesis or monoparesis. Overall outcomeafter surgery was seen as 66% neurologically intact patientsand mortality was only 6%.Conclusion: Present study reported that maximum incidenceof meningiomas is in 3rd, 4th & 5th decade and Females weremore affected than male with ratio of 1.631. In our study themost common histopathological type of tumor wasmeningothelial meningioma. The most common complicationswere limb weakness, followed by decreased vision and lowercranial nerve palsy which improved with time.