Case Report of a Patient with a Favorable Prognosis Following Excision of a Metastatic Inguinal Sac Tumor Originating from Cecum Cancer

Abstract

: A 69-year-old man with a right inguinal mass was admitted on January 23, 2002. He underwent an ileocecal excision for treatment of cecum cancer (pT3 N1 MO) in December 2000. The mass contained a cystic component and had a saccular tumor protruding from the inner wall. The operative findings revealed that the mass extruded from the external inguinal ring, and a modified Bassini's operation was performed on February 1, 2002. The cystic component was completely separated from the peritoneal cavity, and was found to contain high levels of CEA and CA19-9. Pathological examination revealed that this saccular tumor was an adenocarcinoma similar to that seen in cecum cancer. Saccular tumors originating from cecum cancer are very rare and the prognosis is usually poor. However, the prognosis for the case reported in this study was favorable, and recurrence was still not seen 33 months after surgery. The possibility of peritoneal metastasis should be considered in inguinal hernia patients with a history of intraperitoneal malignancy.