Primary intraosseous osteolytic meningioma: a case report and review of the literature

초록

BackgroundPrimary intraosseous meningioma is a subset of extradural meningioma that arises in the bone, and only a few cases have been reported to date.Case presentationAn 80-year-old man presented with decreased hearing on the right side accompanied by a disturbance of balance 10months prior to admission. Magnetic resonance imaging revealed an 8x7cm osteolytic mass in the right posterior fossa related to the petrous bone, with extension to the cervical region. During surgery, the tumor was found to be located extradurally, with no invasion of the dura. The tumor was removed entirely, apart from a small portion around the jugular foramen to avoid lower cranial nerve injury.ConclusionThe final diagnosis was primary intraosseous osteolytic meningioma with atypical pathology. Here, we report a rare case of an osteolytic skull lesion in the skull base not invading the dura and with extensive bone destruction.

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