Calvarial ectopic meningothelial meningioma.

Background: Meningiomas are the most common benign neoplasm of the brain whereas ectopic presentation, although reported, is rare. Among these ectopic tumors, there are a group of purely intraosseous meningiomas, which usually are diagnosed differentially from common primary osseous tumor such as fibrous dysplasia and osteoid osteoma.

Case Description: We report a 62-year-old female with a history of headaches and 6 months of progressive right parietal bulging, with no neurological signs.