Posterior wall perforated ulcer

Ulcer penetration means that the ulcer penetrates deep into the serosa layer, which causes local inflammation and adhesion due to the blocking of adjacent tissues, or that the ulcer penetrates the adjacent tissue to form a wrapped hole. This is more common in posterior duodenal ulcers, and it is rare for gastric ulcers to penetrate. More than half of them penetrated to the pancreas, followed by gastric hepatic ligament. Duodenal ulcers can also penetrate the gallbladder or common bile duct; gastric ulcers can penetrate the transverse colon.

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