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 In which case Anterior resection is the method of tit ? and explain in detail?
Ans 'b' ie Ca Rectum Anterior resection is the general term used to describe operations in which rectosigmoid pa is resected from an abdominal approach with no need for perineal, sacral or other incision. Resection of the rectosigmoid colon performed above the pelvic peritoneum is called high anterior resection. whereas an operation in which it is necessary to open the pelvic peritoneum to approach the lesion in upper 2/3 of rectum is called as Low anterior resection.