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Monitoring Tumor Metastases and Osteolytic Lesions with Bioluminescence and Micro CT Imaging
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Multifocal Meningiomas Mimicking Dural-Based Intracranial Metastases at 18F-Fluciclovine PET/CT
Mark S Manganaro, John D Millet1, Matthew S Manganaro
1Department of Radiology, Michigan Medicine.
Abstract:
A 78-year-old man with biochemically recurrent prostate adenocarcinoma (prostate-specific antigen, 2.3 ng/mL) but without detectable disease in the chest, abdomen, or pelvis at conventional CT imaging or in the bones at Tc-MDP scintigraphy underwent F-fluciclovine (anti-1-amino-3-F-fluorocyclobutane-1-carboxylic acid) PET/CT to evaluate for occult recurrent or metastatic disease. Imaging identified intense radiotracer uptake within 3 dural-based lesions along the left cerebral convexity. Subsequent MRI and biopsy confirmed multifocal World Health Organization grade 2 atypical meningiomas. Focal intracranial radiotracer uptake at F-fluciclovine PET/CT may create a diagnostic dilemma as incidental meningiomas can mimic intracranial metastases.
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