With stomach cancer - also known as gastric cancer - abnormal cells begin to grow uncontrollably in the inner lining of the stomach and can eventually penetrate deeper layers of the stomach wall.
It remains one of the more common cancers worldwide. In most cases, cancer develops near the gastroesophageal junction, where the stomach meets the esophagus. Globally, it often forms in the main body of the stomach
Symptoms such as unexplained weight loss, nausea, and stomach pain typically appear in later stages, making early detection critical.
Patients can access expert Stomach Cancer Treatment in Nanakramguda, Hyderabad, which may include endoscopic surgery, chemotherapy, radiation therapy, and targeted therapies aimed at improving survival and quality of life.
Anyone can develop stomach cancer, but certain demographic factors may increase your risk. You’re more likely to get stomach cancer if:
Stomach cancer is one of the most common cancers worldwide but is seen less often in the U.S. Only about 1.5% of stomach cancers get diagnosed each year in the U.S., where cases have been declining steadily for the past 10 years.
Stomach cancer doesn’t typically cause symptoms during the early stages. Even the most common early signs of stomach cancer — often unexplained weight loss and stomach pain — don’t usually show up until the cancer is more advanced.
Many of these symptoms are common in other conditions, too. See your provider to check if your symptoms are a sign of stomach cancer or another disease.
Your provider may be able to feel a mass in your stomach during a physical exam depending on how advanced the cancer is. More often, however, symptoms involve recognizing sensations in your stomach. Your stomach may frequently feel swollen, full or painful. The pain may start as mild and then get more intense as the disease progresses.
Stomach cancer forms when there’s a genetic mutation (change) in the DNA of your stomach cells. DNA is the code that tells cells when to grow and when to die. Because of the mutation, the cells grow rapidly and eventually form a tumor instead of dying. The cancer cells overtake healthy cells and may spread to other parts of your body (metastasize).
Researchers don’t know what causes the mutation. Still, certain factors seem to increase the likelihood of developing stomach cancer. They include:
Several genetic conditions are associated with increased gastric cancer risk, including:
Stomach cancer is more common in people with Type A blood, although researchers aren’t sure why.
Your provider will review your medical history, ask about your symptoms and perform a physical exam that may involve feeling for a mass in your stomach. They may order several tests to diagnose and stage stomach cancer.
Staging allows your provider to assess how much the cancer has spread. With stomach cancer, staging ranges from 0 (zero) to IV (four). Stage 0 means the cancer hasn’t spread beyond your stomach lining. Stage IV means that it’s spread to other organs.
Upper endoscopy is commonly used to diagnose stomach cancer. During the procedure, your provider inserts a thin tube with a tiny camera at its tip (endoscope) into your mouth until it reaches your stomach. Small surgical instruments can pass through the endoscope, allowing your provider to remove a tissue sample (biopsy). The sample can be tested in a lab for cancer cells.
Endoscopic ultrasound is a special kind of endoscopy that can help stage the cancer. The endoscope used has an ultrasound probe attached at its tip, that can take pictures of your stomach. It can show if the cancer’s spread from your stomach lining to your stomach wall.
Radiologic tests, including a CT scan, barium swallow and MRI, can help identify tumors and other abnormalities that may be cancer-related. During a barium swallow, you drink a substance that makes your stomach lining more visible on an X-ray. A PET scan can show if cancer has spread throughout your body.
Blood tests can offer information about how your organs are functioning. Poor organ function may indicate that cancer has spread to that organ.
Laparoscopy is a type of surgery that allows your provider to assess cancer spread when less invasive methods, like imaging, haven’t provided enough information. During laparoscopy, your provider inserts a tiny camera into small cuts in your abdomen so they can see your organs directly.
Providers don’t screen for stomach cancer in the U.S. because it’s so rare. Still, if you have a condition that increases your risk, your provider may recommend regular procedures like an upper endoscopy to detect cancerous changes. Ask your provider about their recommendations based on your risk.
Treatment depends on how far your cancer’s spread, your health and treatment preferences. It often involves a care team that includes your primary care provider, a cancer specialist (oncologist) and a gastrointestinal specialist (gastroenterologist). They can advise you on treatment options.
Depending on how much the cancer’s spread, your provider may recommend surgery to remove precancerous cells, a tumor, or all or part of your stomach.
Additional treatments attack cancer cells directly.
Stomach cancer can be cured if it’s in the early stages. Often, though, diagnosis happens in later stages once symptoms begin. Ask your provider about the factors that play a role in your treatment outcomes.
The outlook for stomach cancer depends on the stage of cancer. People in the early stages of stomach cancer have a much better prognosis than those at a later stage. The 5-year survival rate for stomach cancer may be as high as 70% (for little spread) or as low as 6% (for advanced spread).
Speak with your provider for a more accurate assessment of your prognosis. The type of cancer you have, its spread, your health and how your cancer responds to treatment all shape your prognosis.
If you’re at increased risk of stomach cancer, speak with your provider about the pros and cons of regular screenings. Otherwise, keep tabs on your symptoms. Many of the symptoms associated with stomach cancer may be signs of another condition. Only your provider can make a definitive diagnosis.
See your provider if you have symptoms like stomach pain and unexplained weight loss with or without symptoms, like:
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