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Figure 17a. Thrombus at the tip of a central line in a 76-year-old woman. (a) Coronal PET scan shows focal FDG uptake in the right anterior mediastinum (arrowhead). Note also the physiologic uptake in the myocardium, skeletal muscles, and kidneys. (b) Follow-up PET scan obtained 4 hours later after flushing the central line with saline solution shows persistent uptake (arrowhead). (c) CT scan reveals a thrombus at the tip of the central line (arrow). Follow-up PET performed 2 months later after removal of the central line showed resolution of the uptake.
