Ectopic meningioma in the bilateral nasal olfactory cleft: A case report and literature review

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Abstract
Certain nasal neoplasms, such as ectopic menigioma, present as nasal polyps, together with similar symptoms. The present study reports the diagnosis and treatment of ectopic meningioma in the bilateral nasal olfactory cleft in order to improve the diagnosis and treatment of ectopic meningioma in the nasal cavity. By retrospectively analyzing the clinical data and reviewing the associated literature, a detailed introduction to the clinical manifestation, diagnosis and treatment of ectopic meningioma of the nasal cavity was ascertained. The tumor was removed from the sinus by functional endoscopy surgery. Regular follow‑up appointments were scheduled every three months, with no evidence of recurrence to date. The olfactory recovery and nasal ventilation were normal subsequent to surgery. Meningiomas are infrequently occurring tumors with unpredictable clinical behavior. A clear understanding of the etiology and appropriate diagnostic and management principles may aid in overcoming the challenges of treating primary extracranial meningiomas.