This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
Megaloblastic anemia is seen in- 
Select and explain. 
A. ileal resection, B. Crohn's disease, C. Intestinal lymphatic ectasia, D. Mentrier's disease
A: ileal resection
Answer: A: ileal resection 
Explanation: option 1&2 are correct for this question. Malabsorption may result from surgery on the intestines, intestinal diseases such asCrohn's disease or tropical sprue, or infection (bacterial growth) within the gastrointestinal tract. Pernicious anemia may also cause cobalamin deficiency. ... Without enough intrinsic factor, the body cannot absorb enough cobalamin Ref Robbins 9/e pg 422