Clinical-radiological aspects of primary extracranial meningioma of the ethmoid sinus in a child.

Dr. José Roberto Lopes Ferraz-Filho Avenida Brigadeiro Faria Lima 5544 15090-000 São José do Rio Preto SP Brasil. E-mail: [email protected] Meningiomas are tumors of benign histological nature which represent 13 to 26% of all primary intracranial neoplasia. Approximately 20% of intracranial meningiomas present extracranial dissemination at sites such as the orbit, middle ear, nasal cavity, nasopharynx and paranasal sinuses. Primary extracranial meningiomas are histologically identical to intracranial meningiomas. They usually occur in 40 to 60-year-old patients and are rare in the pediatric age group. Primary extracranial meningiomas represent 1 to 2% of all meningiomas. We to report the case of a 13-year-old girl with a primary extracranial meningioma of the ethmoid sinus, including the main findings of the imaging examination and a brief review of the literature.