Transmission electron microscopy of gallbladder epithelial cells from normal and mucocele gallbladder mucosa.

<p>Compared to normal gallbladder epithelial cells, mucocele epithelial cells contain copious numbers of mucin granules (g) and failure to un-package granule content following exocytosis. g–mucin granule; muc–mucus; mv–microvilli. Left panels bar = 2 μm; middle panels bar = 0.5–1 μm; right panels bar = 200 nm. Figure representative of 3 mucocele and 2 control dog gallbladders.