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 25 year old male presents with a history of chronic diarrhea. Pathological examination reveals cryptitis and crypt abscesses. The likely diagnosis is: and explain in detail?
Though chronic diarrhea may be found in both ulcerative colitis and crohn's disease, cryptitis and crypt abscesses are characteristic findings of ulcerative colitis. So ulcerative colitis is the single best answer of choice. Ref: Harrison's Principles of Internal Medicine, 16th Edition, Pages 1176-84; Davidson's Principles and Practice of Medicine, 19th Edition, Pages 808-817