You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is A patient comes with rectal carcinoma situated 6 cm above dentate line with no nodal metastasis. Treatment of choice will be: and explain in detail?
"In this patient the tumor lies 6 cms above the dentate line (the lower limit is taken into consideration). So the adequate margin is available for a colorectal anastomosis, hence a LAR procedure can be done" Ref: Sabiston 18/e, Page 1413; Schwaz 9/e, Page 1028; CSDT 13/e, Page 664; Devita's Oncology 8/e, Page Chapter 3, Section 13.