The prognosis for patients with carcinoma of the esophagus is poor compared with findings in the instance of malignant growths in other areas of digestive tract. The high incidence of lymph node metastasis is one of the most important factors in poor prognosis for patients with carcinoma of the esophagus.
https://link.springer.com/chapter/10.1007%2F978-4-431-68246-2_132
Recurrence of Thoracic Esophageal Cancer After Three-Field Lymphadenectomy