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
Thump print sign in the abdominal radiograph indicates which of the following conditions? 
Select and explain. 
A. Ischemic colitis, B. Crohn's disease, C. Pseudomembranous colitis, D. All the above
D: All the above
Answer: D: All the above 
Explanation: The thump print sign is seen in Inflamatory bowel disease (Ulcerative colitis, Crohns), infectious colitis (amoebic, pseudomembranous), ischaemic bowel disease and diveiculitis. The sign is a result of haustral mucosal thickening in most of the cases.