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Indian J Nucl Med. 2019 Jan-Mar;34(1):45-47. doi: 10.4103/ijnm.IJNM_101_18.

A Patient with a Benign and a Malignant Primary Pulmonary Meningioma: An Evaluation with 18F Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography and Computed Tomography with Iodinated Contrast.

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Department of Biomedicine and Prevention, University Tor Vergata, Rome, Italy.
Department of Nuclear Medicine IRCSS, Neuromed, Pozzilli, Italy.


An 80-year-old male with a previous history of thymoma and kidney cancer underwent a 18F fluorodeoxyglucose (FDG) positron emission tomography (PET)/contrast-enhanced computed tomography (CT) scan: two pulmonary nodules were discovered, both characterized by an increased glucose uptake. Of them, only one showed mild contrast enhancement. Both nodules were surgically resected: the first nodule was a benign meningioma and the second one was a malignant meningioma. This case study shows that malignancy of meningioma in the lung is not correlated with 18F FDG uptake and the contrast enhancement, thus suggesting that PET/CT may represent a suboptimal imaging modality for the evaluation of these lesions.


18F fluorodeoxyglucose; ectopic meningioma; iodinated contrast enhancement; malignant meningioma; pulmonary nodule

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