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Fig. 4C —41-year-old woman with indeterminate right lower lobe pulmonary nodule. Anterior maximum-intensity-projection image from whole-body ¹⁸F-FDG PET does not show increased metabolic activity in inferior right lung to correlate with this nodule, supporting benign cause. Histology from biopsy of this nodule showed inflammatory nodule with predominantly histiocytic reaction. This would confirm nodule-enhancement CT as false-positive and ¹⁸F-FDG PET as true-negative for malignancy.