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| what causes stomach cancer ? |
types of stomach cancer
- Stomach (gastric) cancer, as defined by the National Cancer Institute (NCI), is cancer that forms in tissues lining the stomach. Located within the upper abdomen between the esophagus and little intestine, the stomach is a reservoir where food is stored and partially digested after it's eaten. When food enters the stomach from the esophagus, the stomach churns the food and releases digestive juices to process the food before it enters the tiny intestine.
Stomach cancer occurs when cells within the stomach become abnormal and multiply. the bulk (90-95%) of stomach cancers are adenocarcinomas, meaning that they arise from the mucosal tissue lining the within of the stomach. The abnormal cells may cover time to invade more in-depth into the stomach wall or eventually spread to nearby tissues or organs. Adenocarcinomas of the stomach are often further classified as an intestinal-type or diffuse type, supported how the cells look under a microscope.
Usually, stomach cancer grows slowly throughout several years causing few, if any symptoms.
It is essential to understand what sort of stomach cancer you've got . Hereditary Diffuse Gastric Cancer (HDGC) is an inherited cancer syndrome that results in an increased risk for both diffuse gastric cancer and lobular carcinoma . Know your risk.
Three sorts of Stomach Cancer (Adenocarcinoma)
Noncardia (Distal) Stomach Cancer
This type of stomach cancer may develop from long periods of inflammation and irritation within the lower portion of the stomach. it's related to chronic infection of Helicobacter pylori (H. pylori) bacteria infection and is more common in developing countries. Behavioral and environmental factors including tobacco use, alcohol consumption, obesity, a diet rich in smoked, salted and pickled foods, and environmental exposure to dust and fumes are risk factors for this sort of stomach cancer.Treatment of H. pylori infection can decrease the danger of stomach cancer development. Tests wont to detect H. pylori infection are blood antibody, urea breath test, stool antigen, and stomach biopsy.
Proximal Stomach Cancer
This type of stomach cancer starts within the upper a part of the stomach and should extend into the gastroesophageal junction, which is that the point where the esophagus joins the stomach. This cancer tends to occur in people that are obese or have esophageal reflux disease. it's more common within the us than in other parts of the planet .Diffuse Stomach Cancer
Diffuse gastric cancer is aggressive cancer that grows rapidly within the cells of the stomach wall. Unlink other cancers that form a mass or a tumor; these cancer cells are diffused – spread or scattered widely or thinly – making it difficult to diagnose. It tends to affect younger people with a case history of the disease or those having a genetic syndrome.Hereditary Diffuse Gastric Cancer (HDGC) may be a hereditary cancer syndrome sometimes caused by a mutation within the CDH1 gene. Learn more about HDGC In Families to work out if your family is in danger .
A pathologist can determine whether the cancer is that the diffuse type. Some words which may be employed by the pathologist include “signet ring carcinoma,” “diffusely infiltrating,” “poorly differentiated,” or “mixed or isolated cell types.”
"Linitis plastica” may be a sort of diffuse gastric cancer sometimes mentioned as Brinton's disease or leather bottle stomach.
Gastrointestinal stromal tumors (GIST)
These rare tumors start in stomach muscle or animal tissue and should be cancerous or non-cancerous. GISTs are typically found within the stomach although they will be found anywhere within the alimentary canal .National Cancer Institute information on GIST
National Library of drugs information on GIST
