Diffuse Symmetric Meningioma En Plaque Mimicking Metabolic Disease of Bone

Abstract

A 50-year-old African American woman with right proptosis and decreased vision demonstrated symmetric, bilateral thickening of the sphenoid wings, calvarium, and skull base on computed tomography. Histopathologic evaluation of the hyperostotic lesion was consistent with meningotheliomatous meningioma. The patient underwent uncomplicated right frontal orbital craniectomy with postoperative radiation. The presentation of en plaque meningioma, when diffuse and symmetric, can mimic a metabolic disease of bone.

KEYWORDS::

• Hyperostosis
• Meningioma en plaque
• Masquerade
• Paget’s disease

Declaration of interest: The authors report no conflict of interest.