Stomach Organ Affected by a Perforated Ulcer

Description

Centered on the ventriculus (gaster), the cut section exposes mucosa thrown into prominent gastric rugae that radiate and flatten toward the lumen, with the wall layers truncated at the margins where muscularis externa and submucosa are also appreciable. An irregular full thickness defect interrupts the continuity of the gastric wall, consistent with a perforated ulcer that breaches from mucosa through serosa. Along the rim of the perforation, the mucosal surface appears disrupted and undermined, and the surrounding tissue suggests reactive change rather than a clean surgical incision. Orientation is best read from the luminal surface outward, moving from the reddish gastric mucosa to deeper supporting layers at the edge. Perforation converts a localized peptic ulcer into an acute surgical abdomen, and this kind of cross sectional view makes that transition obvious. A small anterior wall ulcer, often in the antrum or proximal duodenum, can suddenly communicate with the peritoneal cavity, producing chemical peritonitis and then bacterial contamination, with pneumoperitoneum visible as free air under the diaphragm on upright radiography or CT. The wall defect also frames key operative teaching points: debridement of nonviable margins, sampling when malignancy is a concern, and closure with an omental (Graham) patch when appropriate, alongside risk drivers such as NSAID exposure and Helicobacter pylori infection. Use this artwork in gastrointestinal pathology teaching, general surgery modules on perforated peptic ulcer repair, or in medical publishing where a clear correlation between mucosal injury and transmural failure is needed. It also fits patient education materials explaining why sudden epigastric pain with guarding warrants urgent imaging and operative evaluation. Anatomical accuracy verified by SciePro's Medical Advisory Board.