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. 2012 Apr;24(4):368-74.
doi: 10.1097/MEG.0b013e328350f816.

Recurrence after surgical resection of gastrinoma: who, when, where and why?

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Recurrence after surgical resection of gastrinoma: who, when, where and why?

Frédérique Maire et al. Eur J Gastroenterol Hepatol. 2012 Apr.

Abstract

Background: Surgery prolongs survival in patients with gastrinomas, but postoperative recurrences are frequent and controversies still exist about the optimal surgical procedures.

Aim: The aim of this study is to analyze biological and morphological recurrences and to search for risk factors.

Patients and methods: Between 1990 and 2008, 22 patients (five with multiple endocrine neoplasia type 1) who underwent curative resection for gastrinoma were evaluated every 6 months for biological and morphological recurrences. All patients were disease-free postresection.

Results: The median postoperative follow-up was 37 months (range, 7-204 months). A biological recurrence was observed in 59% of cases, after a median time of 16.5 months (range, 7-90 months). A morphological recurrence was reported in 32% of cases, in the liver (86%) or lymph nodes (43%), after a median time of 21 months (range, 8-91 months). The median delay between biological and morphological recurrence was 3 months (range, 0-69 months). At recurrence, all patients were offered a second treatment (surgical resection in 71% of cases). One and 5 year overall survival were 100 and 76%, respectively. One and 5 year biological disease-free survival (DFS) were 76 and 27%, respectively. One and 5 year morphological DFS were 90 and 62%, respectively. Tumor size of at least 20 mm (P=0.008) and pancreatic location (P=0.04) of the primary tumor had significant effect on morphological DFS. Overall survival was significantly lower in patients with primary tumor of at least 20 mm (P=0.01).

Conclusion: (a) Recurrence occurs in nearly two out of three patients operated upon for gastrinoma, most often detected through biological tests; (b) lymph nodes and liver are the most frequent sites of relapse and patients benefit from second treatment; (c) risk factors for recurrences are as follows: size of at least 20 mm; and the pancreatic location of the primary tumor.

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