n.憩室；支囊
The diverticulum contained whole layers of the esophageal wall. 病患接受憩室固定术的手术治疗，此憩室具有完整的食道壁。
After the colon, the duodenum is the most common site for diverticulum. 继结肠源，十二指肠是憩室最多见的部位。
