a comparison of routine and special histochemical methods that were applied to the epithelial mucins of small intestine from patients with crohn 's disease and from normal controls showed that the normal small intestine ( ileum ) goblet cells secrete a predominantly non-sulphated sialomucin and that , in contradistinction to the colon , the neuraminidase insensitivity of the sialic acids of the small intestine was not due to either o-acylation at c4 or an ester substituent at c1 .
C0020885
ileum
C0021852
small