FDG-PET scan in management of pulmonary sarcoidosis.

Fig. 1 : CT thorax showing asymmetrical fissural and perivascular nodules and linear opacities in both lungs Fig. 2 : FDG PET showing tracer uptake in bilateral pulmonary parenchyma corresponding to the HRCT findings. Fig. 3: Post treatment HRCT thorax showing regression in fissural and perivascular nodules but persistence in the linear opacities Fig. 4: Post treatment FDG PET showing significant absence of tracer uptake