Primary Meningioma of the Nasal Cavity - Abstract
Introduction: Primary sinonasal meningiomas are rare. They pose a problem of diagnosis. We report, through an observation, the clinical characteristics, diagnostic difficulties and therapeutic modalities of primary sinonasal meningiomas.
Case presentation: A 50-year-old female patient consulted us for a left unilateral nasal obstruction without epistaxis episodes, nor smell disorders, nor headaches, evolving for more than one year. Examination revealed a grayish fleshy tumor of the left nasal cavity. MRI showed a tissue mass centered in the left nasal cavity, pushing back the inter-sinus-nasal septum without invading it and without intracranial connection. The biopsy was in favor of a meningothelial meningioma. The tumor was resected endonasally. Histological analysis confirmed the diagnosis. The evolution was favorable after a ten-month follow-up.
Conclusion: The positive diagnosis of primary nasosinusal meningiomas is difficult because of their rarity in this ectopic site and their non-specific clinical aspect. The diagnostic confirmation is anatomopathological with immunohistochemical study. Imaging confirms the primary nature of these tumors. The prognosis is excellent after complete surgical excision without further adjuvant treatments.