Biopsy of the lower oesophagus in a patient with chronic reflux demonstrates epithelial metaplasia. Which of the following cell types was most likely observed in the involved areas?
The medical condition is Barrett's esophagus, in which the normally nonkeratinizing squamous epithelium of the esophagus undergoes metaplasia to gastric or intestinal-like epithelium composed of nonciliated columnar epithelial cells.
Ciliated columnar epithelium
Ciliated columnar epithelium
Keratinizing squamous epithelium
Nonciliated columnar epithelium
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