Our food moves to our digestive system through the esophagus, a long, hollow tube that starts from the throat and ends in the stomach. But when tumors start growing long anywhere along the esophagus, specifically over the cells that line the insides, that’s when esophageal cancer occurs. Its symptoms usually start showing up at later stages. However, certain signs of esophageal cancer can help in early diagnosis. Some of them are: Difficulty while swallowing Difficult swallowing of food and liquids is one of the most prominent signs of esophageal cancer. As the cancerous cells grow slowly, a person finds it difficult to swallow food. The experience is similar to having food stuck in the chest or the throat. In some cases, it may even cause choking. This usually begins as a mild symptom and worsens over time as the lining of the esophagus narrows. Acute pain in the chest In some cases, esophageal cancer may trigger discomfort or pain in the chest. The sudden flare-up of pain usually occurs in the central part of the chest. Sometimes, the pain may be accompanied by a burning sensation or may feel like pressure building up. This type of sign is often reported as a symptom of other health problems, such as heartburn.