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Reactive gastropathy, is characterized histologically by: [2] - Foveolar hyperplasia (black arrow), as a tortuosity in the "neck" region of the gastric glands. - Scant or minimal inflammatory cells (white arrow), i.e. lack of large numbers of neutrophils and plasma cells.. - Smooth muscle hyperplasia in the lamina propria (in black oval).
While the diagnosis of lymphocytic esophagitis depends on the biopsy results, certain changes can be visualized directly at the time of endoscopy. The esophagus may be narrow in calibre, [ 5 ] may show multiple rings, [ 5 ] redness, [ 5 ] linear furrows [ 1 ] or the mucosal lining may slide demonstrating a "crepe-paper" appearance. [ 1 ]
Common sites for squamous metaplasia include the bladder and cervix. Smokers often exhibit squamous metaplasia in the linings of their airways. These changes don't signify a specific disease, but rather usually represent the body's response to stress or irritation.
Micrograph of Barrett's esophagus (left of image) and normal stratified squamous epithelium (right of image). Alcian blue stain.. Glandular metaplasia is a type of metaplasia where irritated tissue converts to a glandular form.
The subserosa has clinical importance particularly in cancer staging (for example, in staging stomach cancer [1] or uterine cancer). The subserosa ( sub- + serosa ) is to a serous membrane what the submucosa ( sub- + mucosa ) is to a mucous membrane .
Reactive stains undergo an observable change due to a chemical process related to the function of the gastrointestinal tract. Congo red is used as a test for achlorhydria in the stomach, to test adequacy of vagotomy ( post adequate vagotomy, gastric acid secretion is abolished) and to detect presence of ectopic gastric tissue, as it changes ...
The esophageal gland or oesophageal pouch is a part of the digestive system of some gastropods.The esophageal gland or pouch is a common feature in so-called basal gastropod clades, including Patelloidea, Vetigastropoda, Cocculiniformia, Neritimorpha and Neomphalina.
Diagram of the alkaline mucous layer in the stomach with mucosal defense mechanisms. The gastric mucosa is the mucous membrane layer of the stomach, which contains the gastric pits, to which the gastric glands empty. In humans, it is about one mm thick, and its surface is smooth, soft, and velvety.