Corresponding to the complex fluid/soft tissue density in the right para-aortic and right paratracheal regions, there is intense FDG uptake. Especially in the anterior component, FDG uptake is peripheral with central photopaenia suggestive of necrosis. Abnormal uptake abuts the arch of the aorta.
Abnormal hypermetabolism in the wall of the ascending aorta extending from the aortic root superiorly may be inflammatory related to the in situ graft, or reactive secondary to the adjacent mediastinal process.
Mild hypermetabolism in the right pleural effusion.
Physiological uptake elsewhere.