Accessory spleen-like masses in oncology patients: Are they always benign?

Figure 1 Pathological uptake of 2-[¹⁸F] fluoro-2-deoxy-D-glucose in accessory spleen-like mass in a lymphoma patient. A: Positron emission tomography (PET) maximum intensity projection shows intense focal uptake in a mediastinal lymph node and in an accessory spleen-like mass (ASLM) in a 31-year-old man with Hodgkin’s lymphoma; B: Transverse PET/computed tomography (CT) images show intense 2-[¹⁸F] fluoro-2-deoxy-D-glucose uptake in the ASLM; C: Transverse PET/CT images obtained after treatment showing complete regression of the enlarged pathological lymph node.

Figure 2 Transverse positron emission tomography/computed tomography images show intense uptake of 2-[¹⁸F] fluoro-2-deoxy-D-glucose in the spleen and accessory spleen, which corresponded to lymphomatous involvement in an 83-year-old woman with non-Hodgkin’s lymphoma.