Esophageal cancer is a type of cancer that affects the esophagus, which is a tube-like structure that connects the throat and the stomach.
This type of cancer can develop in different parts of the esophagus, and it can spread to other parts of the body.
Causes of Esophageal Cancer
The exact cause of esophageal cancer is not known. However, some factors may increase the risk of developing this type of cancer:.
1. Tobacco Use
Smoking or using any tobacco products increases the risk of developing esophageal cancer. This is because tobacco can damage the cells lining the esophagus, making them more likely to become cancerous.
2. Alcohol Consumption
Heavy alcohol consumption can also increase the risk of esophageal cancer. Alcohol can irritate the cells lining the esophagus and cause inflammation that can lead to cancerous changes.
3. Gastroesophageal Reflux Disease (GERD)
GERD is a condition where the acidic contents of the stomach flow back up into the esophagus, causing irritation and inflammation. Chronic GERD can lead to changes in the cells lining the esophagus that can lead to cancer.
4. Barrett’s Esophagus
Barrett’s esophagus is a condition where the cells lining the esophagus change and become more like the cells that line the intestines. This condition is often caused by chronic GERD and increases the risk of developing esophageal cancer.
5. Obesity
Being overweight or obese increases the risk of developing esophageal cancer. This is because excess body fat can put pressure on the stomach and lead to chronic acid reflux, which can cause irritation and inflammation of the esophagus.
Symptoms of Esophageal Cancer
The early stages of esophageal cancer may not cause any symptoms, but as the cancer grows and spreads, it can cause the following symptoms:.
1. Difficulty swallowing
Dysphagia, or difficulty swallowing, is one of the most common symptoms of esophageal cancer. This can happen because the cancerous cells narrow the esophagus, making it difficult for food and liquids to pass through.
2. Chest pain or discomfort
Esophageal cancer can cause chest pain or discomfort that may be mistaken for heartburn or indigestion. This pain can be felt behind the breastbone and may get worse when a person swallows.
3. Weight loss
Unintentional weight loss can occur because the cancer can make it difficult for a person to swallow and eat enough food.
4. Chronic cough or hoarseness
A chronic cough or hoarseness can occur because the cancer can irritate the vocal cords and the upper part of the respiratory system.
5. Vomiting
Vomiting can occur because the cancer can block the esophagus and prevent food and liquids from passing through.
Risk Factors of Esophageal Cancer
Several factors can increase the risk of developing esophageal cancer:.
1. Age
The risk of developing esophageal cancer increases with age. The majority of people who are diagnosed with this type of cancer are over the age of 50.
2. Gender
Men are two to three times more likely to develop esophageal cancer than women.
3. Race
Esophageal cancer is more common in African Americans than in Caucasians.
4. Family history
People who have a family history of esophageal cancer or stomach cancer may be at a higher risk of developing these types of cancers.
5. Exposure to certain chemicals
Exposure to certain chemicals, such as asbestos, can increase the risk of developing esophageal cancer.