QuestionSBA
QuestionChoice
Whilst the epithelium lining the oesophagus is squamous, the metaplastic change in Barrett's oesophagus is to columnar not glandular epithelium. This is because the oesophagus has to adapt to chronic acid exposure and so the epithelium becomes like that of the stomach; columnar. A glandular epithelium is found in organs that have secretory functions such as the pancreas.
10025702
c
Stratified squamous to glandular
QuestionChoice
Whilst the epithelium lining the oesophagus is squamous, the metaplastic change in Barrett's oesophagus is to columnar rather than cuboidal epithelium. This is because the oesophagus has to adapt to chronic acid exposure, and so the epithelium becomes like that of the stomach; columnar.
10025701
b
Stratified squamous to cuboidal
QuestionChoice
Barrett's oesophagus involves a metaplastic change of the normal squamous epithelium of the distal oesophagus to a columnar epithelium. This is because the oesophagus has to adapt to chronic acid exposure and so the epithelium becomes like that of the stomach; columnar.
10025704
e
Glandular to stratified squamous
QuestionChoice
Barrett's oesophagus involves a metaplastic change of the normal squamous epithelium of the distal oesophagus to a columnar epithelium. This is because the oesophagus has to adapt to chronic acid exposure and so the epithelium becomes like that of the stomach; columnar.
10025703
d
Cuboidal to stratified squamous
QuestionChoice
Barrett's oesophagus involves a metaplastic change of the normal squamous epithelium of the distal oesophagus to a columnar epithelium. This typically occurs when oesophageal cells are chronically exposed to acidic stomach contents, as in the case of GORD. Metaplasia is a broad term in histology used to refer to the change from one differentiated cell type to another differentiated cell type.
10025700
a
Stratified squamous to columnar
Concept
Chapter
2693
4350
Barrett's oesophagus
Topic
136
Gastroenterology
17538
A 43 year old man with a long-standing history of gastro-oesophageal reflux disease (GORD) receives the results of a recent oesophago-gastro duodenoscopy. The clinician explains that they found evidence of a condition known as Barrett's oesophagus.

Which of the following epithelial changes is found in Barrett's oesophagus?
a