Stomach, Glandular Stomach - Hemorrhage

Stomach, Glandular stomach - Hemorrhage in a female B6C3F1 mouse from a subchronic study. There is hemorrhage in the mucosa.
Figure 1 of 4

Stomach, Glandular stomach - Hemorrhage in a male F344/N rat from a chronic study. There is hemorrhage in the submucosa.
Figure 2 of 4

Stomach, Glandular stomach - Hemorrhage in a male F344/N rat from a chronic study. There is hemorrhage in the mucosa and a vascular thrombus in the submucosa (arrow).
Figure 3 of 4
comment:
Hemorrhage characterized by free red blood cells in the lamina propria ( Figure 1



recommendation:
Hemorrhage should be diagnosed and graded. Hemorrhage in an area of necrosis or inflammation is usually not diagnosed separately, unless it is a prominent component of the lesion, but should be described in the pathology narrative.references:
MacKenzie WF, Alison R. 1990. Heart. In: Pathology of the Fischer Rat (Boorman GA, Montgomery CA, MacKenzie WF, eds). Academic Press, San Diego, CA, 461-472. Abstract: https://www.ncbi.nlm.nih.gov/nlmcatalog/9002563
Web page last updated on: November 17, 2014