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

• DOI: 10.1007/s13139-013-0259-8
• Publication Date: 2014-01-17T09:14:28Z
• Authors: Ho Seong Kim; Seok Hwi Kim; Hyung Jin Kim; Se Woong Kang; Soo Jeong Kim; Joo Hee Lee; Sun Pyo Hong; Young Seok Cho; Joon Young Choi
• Keywords: Sphenoid bone

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. (18)F-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 (18)F-FDG uptake mimicking a malignancy.