Columnar epithelial cells lining the papillary structures stained variably and weakly for this distal respiratory cell marker.

Antiserum to sodium-potassium-stimulated adenosine triphosphatase bound to the basolateral but not the apical plasmalemma of columnar epithelial cells.

Lungs were cystic, filling the thoracic cavity, and were composed of numerous dilated saccules lined with glycogen-containing columnar epithelial cells.

Antropyloric and intestinal-type metaplasia of gastric columnar epithelial cells occurs commonly in the setting of atrophic gastritis in both adults and pediatric patients.

The monolayer of columnar epithelial cells lining the gastrointestinal tract-theintestinal epithelial barrier (IEB)-isthe largest exchange surface between the body and the external environment.