This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
Deverticulum of the stomach -a) Pain is the main symptomb) Usually at cardiac endc) Usually on posterior surfaced) Inversion is the satisfactory treatmente) All of the above 
Select and explain. 
A. ab, B. bc, C. abc, D. bcd
C: abc
Answer: C: abc 
Explanation: • Gastric diverticula are usually solitary and may be congenital or acquired.
• Congenital diverticula are true diverticula and contain a full coat of muscularis propria, whereas acquired diverticula (perhaps caused by pulsion) usually have a negligible outer muscle layer.
• Most gastric diverticula occur in the posterior cardia or fundus.
• Most of the time gastric diverticula are asymptomatic.
• However, they can become inflamed and may produce pain or bleeding.
• Perforation is rare.
Treatment:
• Asymptomatic diverticula do not require treatment
• Symptomatic lesions should be removed. This can often be done laparoscopically.