Pittsburgh Compound-B Uptake in Meningioma With Histopathologic Correlation

Solitary Dural Metastasis From Neuroblastoma Detected by 123 I-MIBG SPECT/CT

ABSTRACT

123 I-MIBG SPECT/CT was performed for follow-up in an asymptomatic 8-year-old girl with a history of neuroblastoma. The images showed an unsuspected abnormal accumulation in the head, which was identified as a hyperdense lesion of the dura with increasing MIBG uptake, suggesting the possibility of metastasis from neuroblastoma. A brain MRI with contrast showed a remarkably enhanced lesion beside the confluence of sinuses, which mimicked meningioma. Results of the surgical pathology are consistent with the diagnosis of dural metastasis from neuroblastoma.

Incidental 18F-Florapronol Uptake in Meningioma

ABSTRACT

A 76-year-old woman underwent 18F-florapronol (18F-FC119S, an amyloid β imaging PET agent) PET, owing to cognitive impairment. 18F-florapronol PET images revealed an incidental 18F-florapronol uptake in the right frontal lobe. A well-enhancing extra-axial mass in the right frontal lobe was observed on MRI scans, suggesting a meningioma. After excision of the tumor, the biopsy results confirmed it as a meningothelial meningioma.