Ileus due to the Peritoneal Recurrence of Colon Cancer in an Elderly Patient Treated with Magnetic Compression Anastomosis

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An 89-year-old woman presented with appetite loss, fullness, and abdominal pain. She had undergone a right hemicolectomy and microwave coagulation therapy for liver metastasis due to transverse colon cancer and liver metastasis 22 months earlier. She had not had postoperative chemotherapy. She was diagnosed with ileus and admitted. An ileus tube was inserted. She was ultimately diagnosed with ileal obstruction due to the recurrence of colon cancer, based on computed tomography, contrast radiography via the ileus tube, and colonoscopy. The ileus was treated with a magnetic compression anastomosis using Yamanouchi's method. Using radiography, two magnets were placed in the ileum and transverse colon before and after the obstruction. This method does not require a laparotomy or general anesthesia, making it safe, with a low complication rate. The patient improved once and seemed to be able to leave the hospital, but she suddenly died of aspiration pneumonia.