XXXX and @entity27821 expression in @entity14 .

@entity1 @entity6910 @entity5 @entity20604 @entity27821 @entity14 @entity3
The expression of @entity6910 (H) and @entity27821 antigens on 68 @entity14 from 63 @entity1 was studied by immunohistochemical staining of tissue specimens. The pattern of antigen expression was as follows: @entity20604 was expressed in normal tissue only in secretors and was expressed in the proximal but not distal colon. In @entity5 , there was net loss of @entity20604 expression in the proximal and net gain in the distal colon. Some nonsecretor @entity5 tissue expressed @entity20604 . Lewis expression was similar to but less strong than @entity20604 . Its expression occurred only in secretors and in normal epithelium only in the proximal colon. In @entity5 there was net loss of antigen expression proximally and net gain in the distal colon. There was no expression of Lewisb in @entity5 of nonsecretors. Lewisa antigen was expressed throughout the normal colon in secretors and nonsecretors with no discernible difference between proximal and distal colon. In @entity5 , net loss of expression of Lewisa occurred throughout the colon. No inappropriate blood group expression was observed in this study. With few exceptions, H expression paralleled expression of A and B in non-0 @entity1 . @entity3 antigen expression was similar to that of the primary in most cases. Alterations in antigen expression were not clinically or histologically distinctive.
