Figure 18
From: A Differential Approach to Form and Site of Peptic Ulcer
View at a freshly perforated duodenal ulcer at operation. The characteristic form of this full wall necrosis develops at the anterior surface in-between the arterial influx from both mesenteries. The direct view from the serosal side shows the radial symmetry of the transmural defect with acute margins to all sides of the vital surrounding tissue. Macroscopically and microscopically this typical finding appears to be punched out from a grossly intact duodenal wall.
