1. Difficulty swallowing When there are abnormal lesions in the esophagus, it can cause difficulty swallowing. As the lesions grow larger, it becomes difficult to swallow even liquid food, and sometimes even saliva cannot be swallowed.

 2. Dryness and tightness in the throat Esophageal cancer can cause a decrease in the production of mucus in the esophagus, leading to dryness and a feeling of tightness in the throat.

3. Sensation of foreign body When a tumor is present in the esophagus, patients may feel that there is something stuck in their throat and are unable to swallow it. 

4. Pain when swallowing food Esophageal cancer patients may also experience pain when swallowing, which can be easily mistaken for tonsillitis.