Minimally Invasive Interhemispheric Approach for Giant Olfactory Groove Meningioma: Technical Note.

Background: Skull base tumors, such as large olfactory groove meningiomas (OGMs), are a challenge for neurosurgeons. However, the tendency to reduce invasive surgeries is gaining more adepts. We describe a minimally invasive interhemispheric approach with a falx window for microsurgical resection of the giant OGM as a technical note.