alexa Histology of the gastroesophageal junction: an autopsy study.
Gastroenterology

Gastroenterology

Journal of Gastrointestinal & Digestive System

Author(s): Chandrasoma PT, Der R, Ma Y, Dalton P, Taira M

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Abstract Current diagnostic criteria for reflux disease and Barrett's esophagus are based on the belief that the gastroesophageal junction normally contains 2 cm of cardiac mucosa composed of mucous glands devoid of parietal cells. This autopsy study disproves this belief. Even when the entire circumference of the gastroesophageal junction is examined, pure cardiac mucosa was completely absent in 56\% of patients. All patients had oxyntocardiac mucosa, in which glands contained a mixture of mucous and parietal cells. Cardiac and oxyntocardiac mucosae were present only in part of the circumference of the junction in 50\% of patients. The measured maximum length of cardiac plus oxyntocardiac mucosa was less than 0.5 cm in 76\% of patients. There was a tendency for the presence and extent of cardiac mucosa to increase with age. Cardiac mucosa at the junction is therefore frequently absent, has considerable individual variation, is very small in extent when present, is commonly absent from some part of the circumference of the junction, and increases in prevalence and length with age. These characteristics of cardiac mucosa make it highly unlikely that it is a normal structure. We develop the hypothesis that cardiac mucosa represents an early histologic manifestation of gastroesophageal reflux.
This article was published in Am J Surg Pathol and referenced in Journal of Gastrointestinal & Digestive System

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