This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal Radiology, Subject name: Radiology
Pneumatosis Intestinalis is associated with? 
Select and explain. 
A. Necrotising Enterocolitis, B. Gall Stone ileus, C. Diveiculosis, D. Hirschsprung Disease
A: Necrotising Enterocolitis
Answer: A: Necrotising Enterocolitis 
Explanation: Pneumatosis Intestinalis is the presence of intramural air seen in Stage IIb of Necrotising Enterocolitis / Intestinal ischemia.