Multiple polyps of the gastric mucosa in two dogs

Multiple polyps of the gastric mucosa are described in a 6-year-old male Airedale and a 6-year-old male French Bulldog. The first dog suffered from chronic vomiting while the second vomited for only 5 days and exhibited signs of pyloric stenosis. Gastroscopic examination revealed broad, thick rolls in the Airedale's antral mucosa and radiographically the antral wall was rigid and normal peristalsis was absent. Radiographic examination of the French Bulldog revealed pyloric stenosis without passage of contrast material through the pyloric canal. In biopsy specimens from the Airedale there were long thin foveolae and slight cellular infiltrations. Multiple polyps of the gastric mucosa were found throughout the antrum at necropsy. The resected antrum of the French Bulldog had a villous growth pattern with adenomatous formations and inflammation.