A Case of Descending Colon Cancer with Ossification Presented with Intussusception

Abstract

The patient was an 83-year-old man. He presented with left-sided abdominal pain and was diagnosed with descending colon cancer with intussusception. Because the abdominal symptoms were mild, laparoscopic colon resection was performed on a standby basis. Intraoperative findings showed that the intussusception had spontaneously been resolved. We performed reconstruction with functional end-to-end anastomosis and the patient was discharged without any postoperative problems. The final diagnosis was Stage II descending colon cancer, and the patient was placed on follow-up without postoperative adjuvant therapy. To date, the patient has been free from any recurrence. Preoperative imaging evaluation showed calcification in the tumor area, but postoperative pathological examination showed bone formation in the same area. Colorectal cancer with bone formation is very rare, accounting for only about 0.4% of all cases. In addition, intussusception in adults is reported to account for 6% of all intussusception cases, and telescoping of the descending colon, which is an organ fixed to the retroperitoneum, is particularly rare. No cases of bowel telescoping in descending colon cancer with osteogenesis have been reported so far. We report this case because it was considered to be of value.