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Sources: American Cancer Society, American Society of Clinical Oncology, Cancer Research UK, National Cancer Institute, Texas Cancer Registry
Sources: American Cancer Society, American Society of Clinical Oncology, Cancer Research UK, National Cancer Institute, Texas Cancer Registry
Cancerous cells can develop in any of the five layers of the stomach, from the innermost layer, the mucosa, to the outermost layer, the serosa. Most cases begin in the mucosa, which produces stomach acid and digestive enzymes. Symptoms, treatments, and survival rates all vary, depending on the cancer’s point of origin in the stomach.
Cancers that begin in the mucosa, the innermost layer, are the most treatable, as they slowly grow out into the outer stomach layers. Cancers in the outer layers of the stomach are more likely to spread to nearby organs or lymph nodes. Stomach cancer that spreads into the lymph system is less treatable. Once a leading cancer killer in the United States, the disease has become less common.
