This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Pathology
Pneumatosis intestinalis is diagnostic of: 
Select and explain. 
A. Ileal perforation, B. Necrotizing enterocolitis, C. Meconium ileus, D. Colonic aganglionosis
B: Necrotizing enterocolitis
Answer: B: Necrotizing enterocolitis 
Explanation: Ans. (b) Necrotizing enterocolitis(Ref: Scand J Surg 94 (1): 47-50. PMID 15865117)In newborns, pneumatosis intestinalis is considered diagnostic for necrotizing enterocolitis, and the air is produced by bacteria in the bowel wall.