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(A) FDG-PET before B lymphocyte depletion shows significant vascular uptake of FDG in both external carotid and subclavian arteries. Part of the abdominal aorta and both iliac arteries also show increased vascular FDG uptake. (B) FDG-PET 4½ months after treatment shows a reduction of vascular uptake with no uptake in the iliac vessels or ascending aorta.
