Even though esophageal cancer is an uncommon cancer, any signs or symptoms of it should not be ignored as only about 20 percent of patients survive at least 5 years after diagnosis. Knowing what to look for and possible ways to prevent this cancer is a first step in avoiding it to begin with.
http://samadimd.com/cancer/2016/6/29/facts-on-esophageal-cancer
FACTS ON ESOPHAGEAL CANCER