This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Gastrointestinal System Including Diarrhea, Subject name: Pediatrics
[{'content': 'True about Crohn disease are all EXCEPT? \nSelect and explain. \nA. Loss of haustration, B. Growth failure, C. Cobblestone colon, D. Perianal fistula formation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Discussing about the options one by one, a. Loss of haustrations is a feature of ulcerative colitis b. Growth failure can even be the only manifestation of Crohn disease. c. Linear ulcers can give a cobblestone appearance to the mucosal surface in Crohn disease d. Perianal disease is common (tag, fistula, deep fissure, abscess) in Crohn disease', 'role': 'assistant'}]