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 Treatment of choice for squamous cell carcinoma of anus is? and explain in detail?
ANSWER: (B) ChemoradiationREF: Schwatrtz 8th ed p-1096Squamous cell carcinoma of the anal margin (distal to dentate line): treated with wide local excisionSquamous cell carcinoma of the anal canal (proximal to dentate line): chemotherapy followed by radiation (chemoradiation), abdomino perineal resection is done for residual cases.Drugs used: 5-FU, mitomycin, bleomycin, cisplatin, doxorubicinMost common anal canal cancer: squamous cell carcinoma