Fig. 1

A representative case before and during the oral steroid therapy of CS. 18F-FDG PET/CT images obtained before (a, b) and during (c, d) treatment of CS. Note the profound decline in the myocardial uptake and increase in the liver uptake. The threshold increased from the time point before (a, 3.7) to that during steroid therapy (c, 4.5). The SUV of the DA showed little change from the time point before (b, SUVmax 2.9; SUVmean 2.6) to that during steroid therapy (d, SUVmax 2.8; SUVmean 2.5)