| 摘要 |
A 26-year-old male had a history of traffic accident in his childhood, and he
underwent splenectomy due to traumatic splenic rupture. The patient suffered
from bilateral flank pain for one month. Lower abdominal sonography showed
bilateral caliceal stones and a well-defined hypervascular solitary mass in the lower pelvis near the right seminal vesicle incidentally. Abdominal computed tomography (CT) scan revealed a solid mass about 3.5 cm in size between the rectum and seminal vesicle. The follow-up abdominal CT scan three months later revealed that the mass became larger, about 4 cm in size. He underwent laparotomy and a wellcircumscribed soft tissue between the right seminal vesicle and rectum was found and excised. The pathology was accessory spleen. Accessory spleen is present in approximately 10-30% of the general population, and is mostly located near the splenic hilum, the tail of the pancreas, or greater omentum. Pelvic accessory spleen is rare. We review the literature regarding accessory spleen and splenosis. The most possible origin in this case is splenosis, autotransplantation of splenic tissue during splenectomy or following trauma. |
