2026 Volume 68 Issue 1 Pages 35-40
Here, we report the case of a 55-year-old male patient who presented with vomiting, diarrhea, and weight loss. Abdominal contrast-enhanced CT revealed a mass in the descending colon that was integrated with the jejunum, and CS revealed a type 2 tumor in the descending colon. Amidotriazoic acid contrast showed leakage of the contrast medium into the jejunum, leading to the diagnosis of descending colon cancer, jejunal invasion, and colojejunal fistula. Oral ingestion caused intestinal obstruction; therefore, surgery was recommended. However, the patient refused surgery, and a partially covered stent was placed inside the tumor. As chemotherapy was continued, the colonic stent migrated into the fistula. The stent was difficult to remove endoscopically; therefore, surgery was performed. The treatment of fistulas caused by colorectal malignancy should be considered in subsequent treatments.
