Symptomatic pelvic accessory spleen.

Accessory spleens are found most commonly at the splenic hilum, however, they rarely are symptomatic. An 18-year-old man presented with lower abdominal pain. Cross-sectional imaging studies with 3-dimensional reconstruction suggested the presence of a mass that was associated with the spleen. A nuclear medicine radioisotope scan confirmed that the mass was a pelvic accessory spleen. Laparoscopic excision was performed with excellent results. This accessory spleen was unusual in its size and location. Accessory spleens should be removed if symptomatic or if they are identified at splenectomy for hematologic disease.