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Published on: September 4, 2017
Extra-axial cavernous malformations of the foramen magnum: illustrative cases
Bo-Han Yao1,2, Da Li1,2, Liang Wang1,2
11Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Fengtai District, Beijing, China; and.
Background:
Extra-axial cavernous malformations involving the foramen magnum are rare, and preoperative diagnosis becomes difficult when they mimic meningiomas.
Observations:
The authors present 2 cases of extra-axial cavernous malformations involving the foramen magnum. Surgical removal of the lesions was performed via far lateral craniotomy. The authors investigate the disease and elaborate the differential diagnosis.
Lessons:
The authors recommend that extra-axial cavernous malformations should be considered in the differential diagnosis of lesions in the foramen magnum region. Intraoperative frozen sections are helpful to the diagnosis, and resection warranted a favorable long-term outcome.
