Cross section of intestinal wall 48 hrs after 38 Gy irradiation. An increase in apoptosis (A), intraepithelial granulocytes (B) and lymphocytes (C) was observed with degenerative epithelium and granulocyte exudate in the lumen (between the villi and even in the crypts, suggesting cryptitis). The slides were stained with hematoxylin and eosin for histological evaluation under light microscopy, which was done by the pathologist in a blinded fashion.
Polistena et al. BMC Surgery 2008 8:1 doi:10.1186/1471-2482-8-1