CASE REPORT
Os meningiomas gigantes da goteira olfatória geralmente se originam da lâmina crivosa do osso etmoide e representam um desafio significativo na prática neurocirúrgica. Esses tumores frequentemente apresentam envolvimento bilateral e podem comprimir os lobos frontais e os nervos cranianos. No que diz respeito ao tratamento, a embolização pré-operatória das artérias etmoidais por meio da artéria oftálmica pode representar uma estratégia importante para reduzir a perda sanguínea intraoperatória e o tempo cirúrgico, particularmente em pacientes com alto risco cardiovascular. Este estudo compara os desfechos da embolização pré-operatória no manejo de dois pacientes com OGMs gigantes e sugere que esse procedimento deve ser considerado em pacientes que não toleram perdas sanguíneas significativas.
Giant olfactory groove meningiomas (OGMs) usually originate from the cribriform plate of the ethmoidal bone and represent a significant challenge in neurosurgical practice. These tumors often exhibit bilateral involvement and may compress the frontal lobes and cranial nerves. Regarding treatment, preoperative embolization of the ethmoidal arteries via the ophthalmic artery may be an important strategy to reduce intraoperative blood loss and surgical time, particularly in patients at high cardiovascular risk. This study compares the outcomes of preoperative embolization in the management of two patients with giant OGMs and suggests that this procedure should be considered for patients who cannot tolerate significant blood loss.
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1Neurosurgery Department, Hospital Beneficência Portuguesa de Ribeirão Preto, Ribeirão Preto, SP, Brazil.
2Centro Universitário UNIFACISA, Campina Grande, PB, Brazil.
Received Jan 22, 2026
Corrected Apr 23, 2026
Accepted May 7, 2026
