Ruminant, Ox: Peyer's patches. Peyer's patch necrosis in mucosal disease (bovine viral diarrhea).

Ruminant, Bovine: Oral cavity. Erosive/ulcerative stomatitis in mucosal disease (bovine viral diarrhea).

Ruminant, Bovine: Rumen. Ruminal scar and erosive/ulcerative rumenitis in mucosal disease (bovine viral diarrhea).

Ruminant, Bovine: Kidney. Serous atrophy of fat in persistently infected animal with mucosal disease or (bovine viral diarrhea).

Ruminant, Bovine: Heart. Serous atrophy of fat in a persistently infected animal with mucosal disease.