A case of invasive meningioma involving the maxillary sinus.

Meningiomas account for nearly 15% of primary brain tumors, but extracranial meningiomas are very rare. We presented a case of invasive maxillary sinus meningioma. A 50-year-old man presented with facial tenderness and severe pain in the left cheek. He had a prior surgery for a meningioma in the left frontal lobe eight months before. Physical examination and computed tomography showed a mass in the left maxillary sinus. Histopathological result of the biopsy obtained via the Caldwell-Luc approach was invasive meningioma. The mass was removed with the sinus mucosa. The histology of the resected specimen was compatible with invasive angioblastic meningioma. Postoperative radiotherapy was administered because of residual intracranial tumor. No recurrence was detected over an 11-month follow-up period.