case_images: PMC5960538_01
case_images: PA chest radiograph demonstrates complete left upper lobe atelectasis and the luftsichel sign.
case_images: CRIRA2018-8574642.001.jpg
case_images: PMC5960538_01_CRIRA2018-8574642.001.jpg
case_images: fig1
case_images: Initial chest radiograph showed the luftsichel sign (i.e., complete atelectasis of the left upper lobe) and trace left pleural effusion (Figure 1).
case_images: Axial PET/CT image demonstrates avid FDG uptake by the left upper lobe mass.
case_images: CRIRA2018-8574642.003.jpg
case_images: PMC5960538_01_CRIRA2018-8574642.003.jpg
case_images: fig3
case_images: The PET-CT demonstrated focally increased metabolic activity within the left upper lobe which was favored to represent lung cancer or, less likely, metastatic disease (Figure 3).