system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Vimal, a 70 years old male presents with a h/o lower GI bleed for last 6 months. Sigmoidoscopic examination shows a mass, of 4 cms about 3.5 cms above the anal verge. The treatment of choice is -
assistant
The correct answer is  None