PMC3992099_01
The initial study demonstrating a bronchial lesion.
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A 18F-FDG PET/CT half-body one-hour and four-hour washout studies were performed (Figure 1).
The delayed study at fours hours.
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Delayed imaging showed a 20% increased SUVmax of the central hilar and anterolateral peripheral lesions, with the necrotic area showing no change in SUVmax (Figure 2).
PMC3992099_02
The MIP image demonstrating a bronchial lesion.
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Cytology was atypical, with a small piece of vegetable matter, suggesting aspiration. 18F-FDG PET/CT showed a lesion, with a SUVmax of 5.6, in the right upper lobe bronchus, suggesting a hilar tumour and distal atelectasis with SUVmax of 4.8 (Figure 3).
The delayed scan at 4 hours.
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A washout study revealed a decreased SUVmax from 5.6 to 3.4 in the hilar lesion, inkeeping with inflammation (Figure 4).