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 False about malignancy in ulcerative colitis: and explain in detail?
Colitis associated colon cancer Arise from flat dysplasia or dysplasia associated lesion or mass Multiple synchronous colon cancer in 12% Mean age: 30 years Distributed uniformly throughout the colon Mucinous or anaplastic cancers are more common Poor prognosis in sporadic cancer is seen .