CMV Enteritis Causing Massive Intestinal Hemorrhage in an Elderly Patient

Figure 4

High-power microscopic examination (hematoxylin-eosin, x400) revealed vasculitis. Some endothelial cells present cytomegaly, suggestive of CMV infection (arrows). The presence of CMV in the jejunum was demonstrated by immunohistochemistry (inset; immunoperoxidase, x400).