1: Normal and compact arrangement of columnar epithelial cells
(CEC) with distinct nucleus under light microscopy and presence of rounded gastric glands (G) separated by lamina propria (LP) (C x 1000), 1.
The LP lobes consist of a flat luminal surface lined by cuboidal to low columnar epithelial cells
that form very little infoldings.
In the gastrointestinal portion of the alimentary tract, tight junctions between the simple columnar epithelial cells
of the mucosa serve as a selectively permeable barrier.
The basal layer consists of columnar epithelial cells
with hyperchromatic nuclei arranged in palisades.
Higher magnification x20: The lining is composed of columnar epithelial cells
and focally surrounded by urothelial cells.
Incisional biopsy of the lesion was performed and histopathological section showed tumor comprising of nest and duct like structures lined by low columnar epithelial cells
with benign looking nuclei.
The ductal lumina were surrounded by columnar epithelial cells
and filled in some areas with eosinophilic material (Fig.
Windpipe lining This scanning electron micrograph image shows how the columnar epithelial cells
(left) that line the trachea are supported by their basement membrane (right).