Elevated FDG activity in lymph nodes as well as the spleen and liver in a patient with adult-onset still disease.

A 66-year-old woman had fever, rash, and joint pain. Physical examination revealed multiple enlarged lymph nodes. A possibility of lymphoma was considered and FDG PET/CT was performed, which demonstrated elevated FDG activity not only in many lymph nodes but also in the spleen and liver. However, adult-onset Still disease was diagnosed, and the patient responded well to therapy.