A 45-year-old patient, 6 months ago underwent gastric resection by Biliroth II due to duodenal ulcer, now bleeding duodenal ulcer is detected. Which are possible causes?
1) Remains of antral mucosa
2) Normal bile passage
3) Collinger-Elisson syndrome
4) Hyperparathyreosis
5) Too small resection extend after previous surgery
A. 1,2,3
B. 2,4
C. 1,3,4,5
D. 2,5
E. All answers are correct
Answer: C. 1,3,4,5