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Results: 4

1.

BARRETT METAPLASIA

MedGen UID:
349478
Concept ID:
C1862318
Disease or Syndrome
2.

Adenocarcinoma of esophagus

A malignant tumor with glandular differentiation arising predominantly from Barrett mucosa in the lower third of the esophagus. Rare examples of esophageal adenocarcinoma deriving from ectopic gastric mucosa in the upper esophagus have also been reported. Grossly, esophageal adenocarcinomas are similar to esophageal squamous cell carcinomas. Microscopically, adenocarcinomas arising in the setting of Barrett esophagus are typically papillary and/or tubular. The prognosis is poor. [from NCI]

MedGen UID:
124636
Concept ID:
C0279628
Neoplastic Process
3.

Gastroesophageal reflux disease

Gastroesophageal reflux (GER) is characterized by the retrograde movement of stomach contents into the esophagus. In its most severe form, GER results in extensive tissue damage caused by acid reflux. In adolescents and adults, and even infrequently in children, chronic GER is associated with the risk of developing Barrett metaplasia (614266), a premalignant lesion of the esophageal mucosa (Hu et al., 2000). In turn, Barrett metaplasia is correlated with the development of adenocarcinoma of the esophagus (see 614266), estimated as the fifth most prevalent neoplasia in the Western world (Lagergren et al., 1999). [from OMIM]

MedGen UID:
6553
Concept ID:
C0017168
Disease or Syndrome
4.

Barrett's esophagus

Barrett esophagus, or Barrett metaplasia, describes the phenotypic change of normal esophageal squamous epithelium to a columnar and intestinal-type epithelium. This metaplastic change is important because patients with Barrett esophagus have an increased risk of esophageal adenocarcinoma. The main cause of Barrett metaplasia is gastroesophageal reflux (GER; 109350). The retrograde movement of acid and bile salts from the stomach into the esophagus in this disease causes prolonged injury to the esophageal epithelium and induces chronic esophagitis, which in turn is believed to trigger the pathologic changes (summary by Wong et al., 2005). [from OMIM]

MedGen UID:
2551
Concept ID:
C0004763
Disease or Syndrome

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