右上黏膜与左边的已破坏了黏膜层的溃疡融合。如果不治疗，随着时间的发展溃疡将继续破坏深部组织，导致疼痛。如果穿透肌层和外膜层，即发生溃疡穿孔，导致急腹症。腹部X线见穿孔所致的腹腔气体。
The mucosa at the upper right merges into the ulcer at the left which is eroding through the mucosa. Ulcers will penetrate over time if they do not heal. Penetration leads to pain. If the ulcer penetrates through the muscularis and through adventitia, then the ulcer is said to "perforate" and leads to an acute abdomen. An abdominal radiograph may demonstrate free air with a perforation.
