Pattern of Recurrence after Extended Radical Esophagectomy with Three‐Field Lymph Node Dissection for Squamous Cell Carcinoma in the Thoracic Esophagus

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Abstract
Factors responsible for recurrence of esophageal cancer were investigated in 90 patients who underwent extended radical esophagectomy with three-field dissection for a squamous cell carcinoma in the thoracic esophagus. The initial tumor recurrence was grouped as either locoregional (site of the primary tumor, anastomotic site, or lymph nodes) or as distant (distant organs, pleura, or peritoneum). Nineteen patients (21%) developed a locoregional recurrence, and 19 (21%) developed a distant recurrence. One (1%) developed both recurrences simultaneously and was classified as a distant recurrence. The locoregional recurrence was correlated with the stage factors, particularly the number of metastasis-positive nodes. For the distant recurrence, vascular invasion was found to have been the most important prognostic factor. Our findings suggested that locoregional recurrence was due to tumor progress related to the extent of lymph node metastasis, whereas distant recurrence was due to the oncologic behavior of the tumor. Locoregional recurrence in patients with limited disease may be reduced by extended radical esophagectomy with three-field dissection. Distant recurrence cannot be controlled by surgery. Adopted postoperative adjuvant therapies showed no effect on recurrence.

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