Fig. 2From: Life-threatening gastrointestinal bleeding caused by jejunal heterotopic gastric mucosa in an adult dog: a rare case reportHistological cross-section of intestinal mass. The normal jejunal mucosa on the right side (o) encircles the intestinal lumen (∞) and is partly displaced by heterotopic gastric fundic mucosa (*) extending through the submucosa into the muscularis. The cystic spaces (x) show focal ulceration (arrowhead) with extravasation of inflammatory cells and erythrocytes. Hematoxylin–Eosin, bar = 1 mmBack to article page