Stomach cancer
Stomach cancer is a tumor that develops in the stomach The stomach is a muscular organ located in the mid-upper part of the abdomen, under the ribs In the stomach, it participates in the breakdown and digestion of food
The term stomach cancer often refers to cancer that begins in the mucus-forming cells of the lining of the stomach (adenocarcinoma). Adenocarcinoma is the most common form of stomach cancer
Stomach cancer is rare a Sh In Sh and its cases, it decreases from year to year Stomach cancer is much more common in other parts of the world, especially in China and Japan
Doctors do not know exactly what causes stomach cancer There is a strong link between the consumption of smoked, salty or acidic foods and stomach cancer Worldwide, the use of refrigerators to store food has reduced the incidence of stomach cancer
In general, cancer develops when a mutation occurs in the DNA of a cell This mutation causes the cell to grow and divide when a healthy cell would die Accumulated tumor cells form cancer, which can damage surrounding structures Tumor cells can also break away from the nucleus and spread throughout the body
Forms of stomach cancer The form of stomach cancer depends on the type of cancer. Forms of stomach cancer are:
- Cancer that develops from glandular cysts (adenocarcinoma) Glandular cells line the stomach and produce mucus that protects the stomach lining from the damaging effects of acid. Adenocarcinoma is the most common form of stomach cancer
- Cancer that develops from cells of the immune system (lymphoma) Gastric lymphoma is rare
- Cancer that develops from hormone-producing cells (carcinoid cancer) Gastric carcinoid cancer is rare
- Cancer that develops from nervous system tissues Connective tissue tumors of the digestive system start from nerve cells in the stomach This form of cancer is rare
Because other forms of stomach cancer are rare, the term 'stomach cancer' most commonly refers to adenocarcinoma.
The signs and symptoms of stomach cancer are:
- Fatigue
- Feeling bloated after eating
- Feeling bloated after eating little food
- Severe and prolonged heartburn
- Acute upset stomach
- Long and unexplained The doctor first excludes other, more common causes of these symptoms
