This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal tract, Subject name: Pediatrics
Cause of "bloody" vomitus in a neonate 
Select and explain. 
A. Meckel's diveiculum, B. Intussusception, C. Malrotation, D. Cholecystitis
A: Meckel's diveiculum
Answer: A: Meckel's diveiculum 
Explanation: Meckel&;s dieiculum may cause severe hemorrhage due to peptic ulceration. The blood is usually passed per rectum and is maroon in colour. it may cause bloody vomitus. Ref : BAILEY AND LOVE&;S SHO PRACTICE OF SURGERY,24 TH EDITION PG NO:1159