[A Case of Rectal Cancer with Protein-Losing Gastroenteropathy].

We report a case receiving laparoscopic surgical resection of rectal cancer with protein-losing gastroenteropathy. A 58- year-old man was referred to our hospital because of melena, diarrhea, and anorexia. He showed septic shock, anemia, and hypoproteinemia. CT scan showed a rectal tumor with regional lymph node swelling and a cavernous lung lesion with a pulmonary embolus. Ninety-five days after admission to intensive care, he was introduced to our department because of the disappearance of a lung lesion indicating a lung abscess. Colonoscopy showed a cauliflower-like type 1 rectal cancer lesion. He experienced laparoscopic low anterior resection 121 days after admission. He was discharged without problems 66 days after the operation. After 8 months of surgery and no chemotherapy, he had no recurrence of rectal cancer. Colon cancer with protein-losing gastroenteropathy is rare and shows a typical cauliflower-like type 1 tumor appearance. Hypoproteinemia can be improved after resection of colon cancer.