2018 Volume 43 Issue 6 Pages 1089-1095
A 79-year-old woman who had undergone laparoscopic right hemicolectomy for ascending colon cancer 2 years earlier was admitted to our hospital. Histopathology revealed a T4b(SI, retroperitoneal)N0M0 stageⅡtumor, with vascular invasion (v2). She was administered 8 courses of Xeloda after the surgery. A follow-up CT performed 2 years after the surgery showed an irregular mass in the uterine body showing ring enhancement, and a mass in the pelvic floor. FDG-PET showed increased uptake by both the mass in the uterine body and that in the pelvic floor. We suspected the lesions as being metastases from ascending colon cancer, or as a primary tumor of the uterus with seeding. Extensive total hysterectomy and excision of the mass in the pelvic floor were performed. The mass was in the retroperitoneal region beyond the peritoneum reversing section . Pathological examination revealed that both the masses in the uterine body and retroperitoneal were metastases from ascending colon cancer. At present, 20 days since the surgery, the patient has shown a favorable course. We report this case, as metachronous metastases from the ascending colon cancer to the uterine body and retroperitoneum are rare.
