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The Esophageal Cancer Quiz introduces the two most common types, demographics, and risk factors. Esophageal cancer is a disease in which malignant or cancerous cells form in the tissues of the esophagus. Men are about three times more likely than women to develop esophageal cancer, and while children are less likely to be diagnosed; these malignant tumors can occur in all demographics and can be treated with radiation therapy, chemotherapy, and surgery.
Avoiding cancer risk factors may help prevent certain cancers. Risk factors include smoking, being overweight, and not getting enough exercise. Increasing protective factors such as quitting smoking and exercising may also help prevent some cancers. The risk factors and protective factors for squamous cell carcinoma of the esophagus and adenocarcinoma of the esophagus are not the same.
Esophageal cancer is a disease in which malignant (cancer) cells form in the tissues of the esophagus. The esophagus is the hollow, muscular tube that moves food and liquid from the throat to the stomach. The wall of the esophagus is made up of several layers of tissue, including mucous membrane (inner lining), muscle, and connective tissue. Esophageal cancer starts in the inner lining of the esophagus and spreads outward through the other layers as it grows.
Studies have shown that the risk of squamous cell carcinoma of the esophagus is increased in people who smoke or drink a lot.
Adenocarcinoma of the esophagus is strongly linked to gastroesophageal reflux disease (GERD), especially when the GERD lasts a long time and severe symptoms occur daily. GERD is a condition in which the contents of the stomach, including stomach acid, flow up into the lower part of the esophagus. This irritates the inside of the esophagus, and over time, may affect the cells lining the lower part of the esophagus. This condition is called Barrett esophagus. Over time, the affected cells are replaced with abnormal cells, which may later become adenocarcinoma of the esophagus. Obesity in combination with GERD may further increase the risk of adenocarcinoma of the esophagus.
The use of medicines that relax the lower sphincter muscle of the esophagus may increase the likelihood of developing GERD. When the lower sphincter muscle is relaxed, stomach acid may flow up into the lower part of the esophagus.
It is not known if surgery or other medical treatment to stop gastric reflux lowers the risk of adenocarcinoma of the esophagus. Clinical trials are being done to see if surgery or medical treatments can prevent Barrett esophagus.
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