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Barrett's esophagus is a pre-malignant condition, not a cancerous one. [citation needed] A small subset of patients with Barrett's esophagus will eventually develop malignant esophagogastric junctional adenocarcinoma, which has a mortality rate of over 85%. [45]
Although H. pylori infection can cause gastrointestinal metaplasia, its eradication does not reverse the process. [1] Bile reflux is an additional pathogenic factor in gastrointestinal metaplasia that can continuously irritate the gastric mucosa. Bile acids in refluxed fluid are widely reported to be associated with gastrointesinal metaplasia ...
Esophageal inlet patches are well defined areas of mucosa which resemble stomach tissue and are pink or salmon colored. [2] The mucosal surface of an esophageal inlet patch is typically flat, [3] but may be slightly raised or slightly depressed.
Some people also experience a sensation known as globus esophagus, where it feels as if a ball is lodged in the lower part of the esophagus. The following are additional diseases and conditions that affect the esophagus: Achalasia [1] Acute esophageal necrosis; Barrett's esophagus; Boerhaave syndrome; Caustic injury to the esophagus; Chagas disease
A micrograph of intestinalized epithelium in Barrett's esophagus. Micrograph showing apocrine metaplasia of the breast with typical features [3] H&E stain. Barrett's esophagus is an abnormal change in the cells of the lower esophagus, thought to be caused by damage from chronic stomach acid exposure.
People with Barrett's esophagus (a change in the cells lining the lower esophagus) are at much higher risk, [55] and may receive regular endoscopic screening for the early signs of cancer. [56] Because the benefit of screening for adenocarcinoma in people without symptoms is unclear, [2] it is not recommended in the United States. [1]
Esophageal strictures – the persistent narrowing of the esophagus caused by reflux-induced inflammation; Barrett's esophagus – intestinal metaplasia (changes of the epithelial cells from squamous to intestinal columnar epithelium) of the distal esophagus [20] Esophageal adenocarcinoma – a form of cancer [17]
Barrett's esophagus is the dominant pre-malignant lesion of esophageal adenocarcinoma, [18] and has prevalent epigenetic alterations. [ 19 ] Esophageal squamous-cell carcinomas may occur as second primary tumors associated with head and neck cancer , due to field cancerization (i.e. a regional reaction to long-term carcinogenic exposure).