Fig. 1From: 18F- FDG PET/CT joint assessment of early therapeutic response in rheumatoid arthritis patients treated with rituximabProgression of disease in a 66 year-old man. The top row (a, fused transaxial PET/CT images) show no abnormal uptake in the knees, whereas the PET/CT performed at week 16 show bilateral synovitis, especially in the right knee (b)Back to article page