If the tumor is larger but localised, chemotherapy and/or radiotherapy may occasionally shrink the tumor to the extent that it becomes "operable"; however, this combination of ...
http://en.wikipedia.org/wiki/Esophageal_cancer
In most cases, the cause is progression of an injury to the esophagus or tumor growth. Food and foreign bodies may obstruct the esophagus as well.
http://www.merck.com/mmhe/sec09/ch120/ch120e.html
The mass of extra cells forms a growth or tumor. Tumors can be benign or malignant. Benign tumors are not cancer. They usually can be removed and, in most cases, they do not ...
http://www.medicinenet.com/esophageal_cancer/article.htm
China dan kawasan tertentu di Asia Tenggara termasuk. kawasan berinsiden tinggi kanker esofagus. Operasi. merupakan metode utama terapi tuntas kanker esofagus
http://www.orienttumor.com/id/kanker_esofagus.htm