2023 Volume 48 Issue 1 Pages 56-63
We report a case of squamous cell carcinoma of the rectosigmoid colon. A 77-year-old woman found to have a liver tumor during a follow-up MRI examination for a pancreatic nodule. Colonoscopy performed subsequently revealed a tumor in the rectosigmoid colon, which was histopathologically diagnosed as a squamous cell carcinoma. CT and MRI revealed invasion of the uterus by the rectosigmoid tumor and a metastasis in the left ovary; based on the findings, the patient was diagnosed as having rectosigmoid colon cancer with multiple organ metastases.
We performed rectosigmoid colon resection, also resecting the liver and left ovarian metastases. Histopathological examination of these tumors showed squamous cell carcinoma, and the clinical stage was categorized as Stage IVb. Cancer cells were detected by lavage cytology during the operation; therefore, curative surgery was not possible. The patient was discharged 27 days after the surgery. Although she subsequently received chemotherapy, she died 8 months postoperatively due to cancerous peritonitis.
SCC of the colon and rectum are rarely reported. The prognosis is not always unsatisfactory and few reports on some established therapies for this type of malignancy have been presented so far.
