Nucl Med Mol Imaging.  2014 Jun;48(2):153-156.

Primary Benign Intraosseous Meningioma on 18F-FDG PET/CT Mimicking Malignancy

• Kim HS
• Kim SH
• Kim HJ
• Kang SW
• Kim SJ
• Lee JH
• Hong SP
• Cho YS
• Choi JY

Abstract

We present a case of primary benign intraosseous meningioma in the sphenoid bone mimicking malignancy. A 44-year-old female patient who had a protruding right eye and headache came to our hospital. MRI showed a large, destructive, heterogeneously well-enhancing soft tissue mass in the right sphenoid bone suggesting malignancy. 18F-FDG PET/CT showed a hypermetabolic mass in the same site with an SUVmax of 9.1 The pathological diagnosis by surgery revealed that this tumor was a WHO grade I transitional meningioma. This case suggests that primary benign intraosseous meningioma may show high 18F-FDG uptake mimicking a malignancy.

Keyword

Benign meningioma; Sphenoid bone; PET/CT; 18F-Fluorodeoxyglucose

MeSH Terms

Adult
Diagnosis
Female
Fluorodeoxyglucose F18*
Headache
Humans
Magnetic Resonance Imaging
Meningioma*
Positron-Emission Tomography and Computed Tomography*
Sphenoid Bone
Fluorodeoxyglucose F18