to test the hypothesis that there is a generalized activation of mucosal t cells throughout the small-intestinal mucosa in crohn 's disease , measurements of the lengths of crypts and villi and intraepithelial lymphocyte ( iel ) counts were made on jejunal specimens from 33 patients with this condition , and the results compared with the established reference values and with results of specimen measurements in a group of normal subjects .
C0227261
small-intestinal mucosa
C0227266
villi