•OGM surgery is much more complex than a simple debate of "from above or from below" (transcranial vs endoscopic).•Lateral Sub-frontal and Superior Interhemispheric seem the most effective, superior and versatile approaches for OGM.•Minimally Invasive Transcranial approaches showed no inferiority in OGM sized <4 cm.•Endoscopic Endonasal Approaches showed inferior results in surgical and in functional outcomes for OGM.
Keywords: Olfactory groove meningiomas transcranial endoscopic endonasal.
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