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: Surgery
Transmural inflammation with skip lesions in colon are characteristic of - 
Select and explain. 
A. Regional ileitis (Crohn's disease), B. Ischemic colitis, C. Ulcerative colitis, D. Non specific colitis
A: Regional ileitis (Crohn's disease)
Answer: A: Regional ileitis (Crohn's disease) 
Explanation: None