Normal colon. Ber-EP4
antigen in epithelial cells. The basolateral cell membrane is strongly stained, the
cytoplasm moderately stained.
stained for Ber-EP4 antigen.
The cell membranes of the acinic cells are strongly stained, the
cytoplasm moderately stained. In the Langerhans islet (centre of
the figure), the cytoplasm is stained, while there is no
enhancement of the membranes.