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Intestinal metaplasia is the transformation of epithelium (usually of the stomach or the esophagus) into a type of epithelium resembling that found in the intestine. In the esophagus, this is called Barrett's esophagus .
Barrett's esophagus; Other names: Barrett's oesophagus, Allison-Johnstone anomaly, columnar epithelium lined lower oesophagus (CELLO) Endoscopic image of Barrett's esophagus, which is the area of dark reddish-brown mucosa at the base of the esophagus. (Biopsies showed intestinal metaplasia.) Specialty: Gastroenterology General surgery
A diagnosis of Barrett's esophagus is confirmed by a metaplastic change of the esophageal mucosa from squamous to columnar mucosa with intestinal metaplasia. Barrett's esophagus is the dominant pre-malignant lesion of esophageal adenocarcinoma, [18] and has prevalent epigenetic alterations. [19]
The International Classification of Diseases for Oncology (ICD-O) is a domain-specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases. This classification is widely used by cancer registries. It is currently in its third revision (ICD-O-3). ICD-10 includes a list of ...
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. The following table lists some common tissues susceptible to metaplasia, and the stimuli that can cause the ...
ICD-10 classifies neoplasms into four ... metaplasia or dysplasia does not always progress to neoplasia and can occur in ... Stomach MLH1: 73%: 20% [54] Esophagus MLH1:
Owing to the causal relationship between H. pylori infection and gastric MALT lymphoma, identification of the infection is imperative. Histological examination of GI biopsies yields a sensitivity of 95% with five biopsies, [7] but these should be from sites uninvolved by lymphoma and the identification of the organism may be compromised by areas of extensive intestinal metaplasia.
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]