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Background. The existence of lymph node (LN) primary gastrinoma as a cause of Zollinger-Ellison syndrome is controversial. We reviewed our experience with patients in whom gastrinomas were identified and excised only from LNs.
Methods. From 1982 to 1992, 110 patients with ZES underwent exploration for gastrinoma and 21 (19%) had disease limited to one or more LNs. Standardized exploration included intraoperative ultrasonography, introoperative endoscopy with transillumination, and exploratory duodenotomy in 86%, 67%, and 24% of patients, respectively. Each patient underwent yearly biochemical and radiologic follow-up.
Results. Thirteen patients (62%) with a median follow-up period of 5.8 years had an initial biochemical cure, whereas eight patients (38%) with a median follow-up period of 3.6 years had persistent disease. Of the 13 patients whose condition initially returned to normal, four have had biochemical recurrence, with a median time to recurrence of 4.2 years and a median follow-up period of 7.4 years. Nine patients (43%) remain biochemically cured, with a median follow-up period of 5.3 years.
Conclusions. Resection of apparent LN primary gastrinoma is warranted, because 43% of those who underwent resection had no evidence of disease, with a median follow-up period of 5.3 years.
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☆Presented at the Fifteenth Annual Meeting of the American Association of Endocrine Surgeons, Dearborn, Mich., April 17–19, 1994.
© 1994 Published by Elsevier Inc.