Case of the Week
Section Editors: Matylda Machnowska1 and Anvita Pauranik2
1University of Toronto, Toronto, Ontario, Canada
2BC Children's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
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June 8, 2009
Meningioangiomatosis
- Meningioangiomatosis is a rare, benign, hamartomatous lesion involving the cerebral cortex and leptomeninges.
- Lesions usually involve the cerebral hemispheres; however, lesions have been described in the deep gray nuclei, brainstem, and cerebellum.
- Imaging characteristics: gyriform/linear enhancement and calcification of the leptomeninges and cortex, which are the result of meningovascular fibroblastic proliferation.
- Most cases are sporadic, although there is an association with neurofibromatosis type 2 (NF2).
- Cyst formation is exceedingly rare.
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