Malignant ulcers represent ulcerated gastric cancers. The radiologic differentiation between benign and malignant ulcers may be difficult. Response to therapy and endoscopy with biopsy are methods that differentiate between benign and malignant ulcers. Duodenal Ulcers Case 1 Case 2 Case 3 Duodenal ulcers are four or five times more frequent than gastric ulcers nowadays. Almost all duodenal ulcers develop in the duodenal bulb.
Duodenal ulcers are virtually all benign.
The ulcer crater or niche is the most common radiological finding. The ulcer crater appears as a dense, round collection of barium measuring less than 1 cm in slze. Associated with the ulcer crater is almost always deformity of the duodenum. The majority of gastric and duodenal ulcers are single. When multiple ulcers are found, Zollinger-Ellison syndrome should be suspected.