Sudden Unexpected Death caused by Olfactory Groove Meningioma: A Case Report

Meningioma, a neoplasm derived from meningothelial cells, is one of the most common neoplasms in the central nervous system. Although certain types of meningiomas are associated with aggressive clinical behavior, majority of meningiomas appear to be benign. 2) Meningiomas are generally slowly growing tumors and produce neurological signs and symptoms either by compression of adjacent structures or by increasing intracranial pressure.Many meningiomas, however, are asymptomatic and can be found incidentally at imaging study or at autopsy. Most of meningiomas which encountered in autopsy are incidental findings and are not considered as the chief cause of death. 5) Sudden unexpected death caused by meningioma is very rare. Moreover, the interpretation of meningiomas as a cause of sudden death sometimes can be difficult. In this report, we describe our experience of a sudden, unexpected death caused by olfactory groove meningioma with brain herniation.