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Incidental finding of meningioma on C11-PIB PET.

As a healthy volunteer for amyloid imaging study, a 83-year-old woman with no history of neurologic or psychiatric illness underwent carbon 11-labeled Pittsburgh compound-B (PIB) PET, which showed focal increased PIB binding in the right anterior temporal region. This focal PIB uptake turned out to be a mass lesion on MRI, which was consistent with a benign meningioma. This is the first case report on the incidentally found intracranial meningioma by PIB PET scan, highlighting the excellent sensitivity of PIB radiotracer in detecting brain amyloid deposition.