Also known as gastric cancer, malignant neoplasm of stomach, malignant tumor of stomach, malignant tumor of lesser curve of stomach, Ca lesser curvature - stomach, malignant tumor of body of stomach, ca greater curvature of stomach, Ca body - stomach
gastrointestinal system cancer that is located in the stomach
Stomach cancer is a disease in which malignant cells form in the stomach, an organ that is part of the digestive system. It matters because it can be life-threatening if not detected and treated, making early awareness and medical attention important for affected individuals.
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Stomach cancer, also known as gastric cancer, is a malignant tumor of the stomach. It is a cancer that develops in the lining of the stomach, caused by abnormal cell growth. Most cases of stomach cancers are gastric carcinomas, which can be divided into several subtypes, including gastric adenocarcinomas. Lymphomas and mesenchymal tumors may also develop in the stomach. Early symptoms may include heartburn, upper abdominal pain, nausea, and loss of appetite. Later signs and symptoms may include weight loss, yellowing of the skin and whites of the eyes, vomiting, difficulty swallowing, and blood in the stool, among others. The cancer may spread from the stomach to other parts of the body, particularly the liver, lungs, bones, lining of the abdomen, and lymph nodes.
The bacterium Helicobacter pylori accounts for more than 60% of cases of stomach cancer. Certain strains of H. pylori have greater risks than others. Smoking, dietary factors such as pickled vegetables and obesity are other risk factors. About 10% of cases run in families, and between 1% and 3% of cases are due to genetic syndromes inherited such as hereditary diffuse gastric cancer. Most of the time, stomach cancer develops in stages over the years. Diagnosis is usually by biopsy done during endoscopy. This is followed by medical imaging to determine if the cancer has spread to other parts of the body. Japan and South Korea, two countries that have high rates of the disease, screen for stomach cancer.
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