The metastasis of esophageal cancer involves several aspects. The first aspect is the metastasis of lymph nodes, including those around the esophagus. If the number of metastatic lymph nodes is small and the tumor's location is suitable for surgical removal, then surgery can still be considered.

The second issue involves cases where there is lymph node metastasis but with a higher number and wider spread, making surgical treatment unfeasible. In such cases, radical radiotherapy and chemotherapy can be considered to treat the esophageal cancer.

Of course, there are also some new methods available now, such as immunotherapy, which can be considered along with others. Also, to improve symptoms of esophageal stricture, using an esophageal stent to control the difficulty of swallowing associated with esophageal cancer is also possible.