PMC6352649_01
Positron emission tomography/computed tomography image of the fibrous (benign) pulmonary meningioma
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F1
PET/CT images showed a metabolically active lesion (SUVmax 4.63 g/ml bw, 14 mm in diameter), suspected of being a metastasis [Figure 1].
Contrast-enhanced computed tomography image of the fibrous (benign) pulmonary meningioma
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F2
Contrast-enhanced CT with iodinated contrast media performed after PET examination did not show significant attenuation between pre- and postcontrast phase [Figure 2].
Positron emission tomography/computed tomography image of the malignant pulmonary meningioma
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F3
In June 2016, another 18F FDG PET/CT scan was performed in the same patient (injected dose 361 MBq) that showed another new metabolically active pseudonodular lesion (SUVmax 2.46 g/ml bw, 12 mm in diameter) in the superior lobe of the left lung [Figure 3].
Contrast-enhanced computed tomography image of malignant pulmonary meningioma
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F4
A CT scan with iodinated contrast, the lesion showed enhancement at postcontrast phase [basal scan:-1 HU; postcontrast scan: 55 HU, Figure 4].