Meningiomas del surco olfatorio. Consideraciones del abordaje endonasal endoscópico extendido transcribiforme

Abstract

Olfactory groove meningiomas represent 10% of intracranial meningiomas, originate from cribriform plate of ethmoid, frontal and sphenoid suture and the sphenoid plane. They are mostly benign and potentially curable tumors, the recurrence occurs in varying degree and the extent of surgical resection is the most important predictor of this recurrence. This article presents the results achieved with the transcribiform extended endoscopic endonasal approach in patients with meningiomas of olfactory groove in neurosurgery department of the “Hermanos Ameijeiras” hospital. The series was of 12 patients where headache, anosmia, and neuropsychological disorders were the predominant symptoms. The tumors had a size ? 6 cm on 50% of the cases and with transcribiform extended endoscopic endonasal approach was reached total removal in 92% (Simpson I) of the patients. The limits of endoscopic endonasal approach for anterior fossa are in constant expansion, being the transcribiform extended endoscopic endonasal approach the ideal and promising option for patients with olfactory groove meningiomas.