How to confirm that these nodules are ectopic splenic tissue?
The gold-standard imaging modality is using a Tc-99m-tagged heat-damaged RBC scan (Tc-99m-DRBC) with autologous erythrocytes.
Absent spleen (history of splenectomy).
Multiple well-defined intraperitoneal lesions of various sizes are seen, with density and enhancing characteristics similar to normal splenic tissue. They are seen at splenic bed, some are peritoneal based, on omentum and the largest is in the rectovesical pouch.
A unilocular cystic lesion with eggshell calcification is seen in the tail of pancrease, with atrophic changes in the tail of pancreas without evidence of ductal dilation.