Anterior and Posterior Ethmoidal Artery Ligation in Anterior Skull Base Meningiomas: AÂ Review on Microsurgical Approaches

A combination of different surgical and endovascular techniques before resection of hypervascular giant olfactory groove and planum sphenoidale meningiomas should always be considered. Microsurgical extracranial ligation of anterior and sometimes posterior ethmoidal arteries provides a safe and feasible option to limit blood loss during anterior skull base surgery.