We encountered a patient with an ileus caused by implantation of cancer cells after surgical treatment of bile duct carcinoma. The patient was a 55-year-old male diagnosed as having cancer in the lower bile duct who underwent pancreatoduodenectomy in March 1996. The comprehensive curability was B. The patient experienced nausea and vomiting and was diagnosed as having ileus in October 1998. The symptoms were alleviated by medical treatment. Because ileus symptoms recurred in December 1998 but were not alleviated by medical treatment, the patient was hospitalized in Kurume University Hospital for surgery. A mirror reflection was observed by plain radiography of the abdomen. Ultrasonography (US) revealed dilation of the intestinal duct and hypertrophy of the intestinal wall. An ileus tube was inserted but the symptoms did not improve, and therefore, the patient underwent surgery in February 1999. Upon laparotomy, a node of milk white color about 2 cm in size was found in the region coinciding with the enhancement on CT images, and part of the intestinal duct was found to be folded and adhered to the lower surface of the liver. No recurrence was observed in the liver, peritoneum, and lymph nodes. The tumor was excised together with part of the intestinal duct and liver to remove the ileus. At present, the patient is alive without recurrence. Because recurrence of cancer by implantation of cancer cells is often localized in a limited region, early diagnosis and excision are important.