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 All the following statements are false, except - and explain in detail?
Ulcerative colitis is an ulcer inflammatory disease limited to colon and affecting only mucosa and submucosa.
Muscular layer of the intestine is not involved in ulcerative colitis except in very severe disease. It is an important point of differentiation from Crohn's disease in which the muscular layer is also involved.
In the same way, granulomas are a pathological feature of Crohn's disease, not ulcerative colitis.
Collagenous colitis primarily affects middle-aged and older women whereas necrotizing enterocolitis is characteristically seen in neonates.