18 F-FDG PET/CT Findings in a Patient With Primary Intraosseous Meningiomas Involving the Ilium and Sacrum.

Yuan, Tingting; Chen, Xueqi; Li, Qian; Fu, Zhanli · Clin Nucl Med · 2026

case_report · Level V

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Abstract

A 21-year-old woman presented with left iliac pain for 1 week. Pelvic radiograph and MRI revealed a large osteolytic lesion involving the left ilium and sacrum. PET/CT showed the lesion having a heterogeneous rim 18 F-FDG avidity with a photopenic center. No additional abnormalities were detected on the body and brain PET/CT scans. The subsequent operative pathology confirmed the diagnosis of intraosseous meningiomas.

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