This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
All of the following are true about toxic megacolon EXCEPT: March 2013 (g) 
Select and explain. 
A. Carries significant risk of perforation, B. Consistent feature of Crohn's disease, C. Colonic dilatation, D. Colectomy may be required
B: Consistent feature of Crohn's disease
Answer: B: Consistent feature of Crohn's disease 
Explanation: Ans. B i.e. Consistent feature of Crohn's disease In cases of ulcerative colitis, inflammation and inflammatory mediators can damage the muscularis propria and neuromuscular function leading to colonic dilation and toxic megacolon.