Metastasis
In this case, we are talking about metastasis to other organs, not lymphatic nodes. Metastasis can be hematogenous when the tumor is spread through the blood, and it is sometimes by direct contact with and adjacent zone. Hematogenous spread mostly occurs to the liver, lungs, brain, adrenal glands, and bones. Direct spread can be due to the infiltration of the walls of the esophagus, involving other organs surrounding the esophagus, such as the trachea, left bronchus, pericardium, major blood vessels, and nerves.