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The Annals of Thoracic Surgery, Vol 58, 646-653, Copyright © 1994 by The Society of Thoracic Surgeons

ARTICLES

Nodal metastasis and sites of recurrence after en bloc esophagectomy for adenocarcinoma

GW Clark, JH Peters, AP Ireland, A Ehsan, JA Hagen, MT Kiyabu, CG Bremner and TR DeMeester
Department of Surgery, University of Southern California, Los Angeles.

The operative specimens from 43 patients undergoing en bloc esophagectomy for adenocarcinoma of the lower esophagus or cardia were analyzed. Depth of invasion of the tumor and extent and location of lymph node metastases were determined. Postoperative recurrence was identified from positive findings on successive 3-month computed tomographic scans. Positive nodes occurred in 33% (2/6) of intramucosal tumors, 67% (6/9) of intramural tumors, and 89% (25/28) of transmural tumors (p < 0.01). Commonly involved nodes were those in the lesser curve of the stomach (42%), parahiatal nodes (35%), paraesophageal nodes (28%), and celiac nodes (21%). Excluding perioperative deaths, follow-up was complete for 38 patients. Twenty patients had recurrence. Fifteen patients (40%, 15/38) had nodal recurrence: cervical, 7.9% (3/38); superior mediastinal, 21% (8/38); and abdominal, 24% (9/38) (retropancreatic in 7 and retrocrural in 2). Of 5 patients with nodal recurrence alone, 3 (60%) had recurrence at sites outside the margins of resection. Patients with four metastatic nodes or less had a survival advantage over those with more than four (p < 0.05). There was no difference in survival according to location of nodal metastases. Two (22.2%) of 9 patients with celiac node metastases survived longer than 4 years. Adenocarcinoma of the lower esophagus and cardia spreads widely to mediastinal and abdominal nodes, and death can occur from nodal disease. Rates of lymph node metastases increase with the depth of the primary tumor. Patients with lymphatic metastases can be cured particularly if there are fewer than four nodes involved. Curative surgical therapy necessitates wide lymph node resection to ensure removal of all metastatic nodes.

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