A 76-year-old man with a history of left-sided colon cancer presents with a 2-day history of obstipation, increasing abominal distension, and cramping. He has progressed on third-line chemotherapy. Cross-sectional imaging shows normal caliber small bowel, dilated cecum, ascending, and transverse colon with a mass in the distal descending colon. He has bilobar liver disease and multiple thoracic metastases. He is hemodynamically stable. What is the best option for revieving the obstruction?
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