<prompt> Cause of bloody vomitus in a neonateMeckels diveiculumIntussusceptionMalrotationCholecystitis  <response>: 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 