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- Ali Akhaddar.
- Department of Neurosurgery, Avicenne Military Hospital, Marrakech, Morocco and Mohammed V University, Rabat, Morocco. Electronic address: akhaddar@hotmail.fr.
- World Neurosurg. 2019 May 1; 125: 398-399.
AbstractAcquired (nontraumatic) brain herniation through the ethmoid is rarely associated with an intracranial mass away from the anterior skull base. A 55-year-old diabetic woman presented with progressive frontal headache, anosmia, and blurred vision without rhinorrhea. Brain magnetic resonance imaging showed an intracranial tumor of the left frontal convexity associated with a herniation of the frontal brain (encephalocele) into the left nasal cavity. A computed tomography scan confirmed the anterior skull base defect. The intracranial tumor was totally excised after a left frontal craniotomy with a good outcome. Pathologic examination revealed a meningothelial meningioma. However, the patient and her family refused any surgery for the ethmoidal encephalocele. In our case report, this rare phenomenon (secondary nontraumatic encephalocele) probably occurred due to long-term increase of the intracranial pressure generated by the meningioma.Copyright © 2019 Elsevier Inc. All rights reserved.
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