[The efficacy of temporary retention chemotherapy of the treatment of polyps in the remnant rectum of familial polyposis after total colectomy and ileorectostomy--a case report].

A case of familial polyposis is reported. The patient was a 24-year-old woman on whom total colectomy followed by ileorectostomy had been performed. However, there were multiple polyps remaining in the remnant rectum. For the treatment of these residual polyps, a new chemotherapeutic method known as Temporary Retention Chemotherapy (TRC), originally devised by us for the treatment of advanced gastric cancer, was applied. A balloon catheter was inserted and fixed into the rectum via the anus for the treatment of the rectal tumors. Through the catheter, high-dose 5-fluorouracil (5-FU) solution was injected into the rectum and retained there for one hour before being discarded. During the therapy, the patient was asked to change her position of recumbency at certain intervals, so that the 5-FU solution could act evenly on the lesions in question. This therapy was repeated twice a week, and followed by routine endoscopic studies. A total dose of 5,700 mg of 5-FU was necessary for obtaining a complete response of the remnant lesions. 6 months later, 4 polyps were found, and TRC was again applied, resulting in disappearance of the polyps again after the therapy. So far, no side-effect have been noted as a result of this therapy. She is currently still alive without any residual polyps, carcinoma or metastasis 6 years after the operation.