"In terms of the metastatic pathways of esophageal cancer, the first one is through the bloodstream, known as hematogenous spread. This primarily results in metastases to distant organs such as the lungs, liver, bones, etc. The second pathway is via the lymphatic system. Lymphatic spread leads to metastases in regional lymph nodes and distant lymph nodes. The third pathway is through local invasion by the tumor, where the esophageal cancer can invade nearby organs and spread. These are the pathways through which metastasis occurs."