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  • Title: Multidisciplinary treatment strategy for advanced pancreatic neuroendocrine tumors- a single center experience.
    Author: Tsuchikawa T, Hirano S, Tanaka E, Kato K, Matsumoto J, Sichinohe T.
    Journal: Hepatogastroenterology; 2012; 59(120):2623-6. PubMed ID: 22497945.
    Abstract:
    BACKGROUND/AIMS: Pancreatic neuroendocrine tumors (PNETs) are rare neoplasms. Little is known about the mode of recurrence and long term prognosis after resection. We aimed to evaluate the surgical indication, especially for the patients with concomitant multiple liver metastases or extreme local invasions. METHODOLOGY: The overall survival (OS) and the disease free survival (DFS) were statistically analyzed for twenty one patients with PNETs who underwent surgical intervention in our institute. The patients were divided into 2 groups, G1 NET (grade 1 neuroendocrine tumor: n=11) and G2 NET (grade 2 neuroendocrine tumor: n=10), according to WHO 2010 classification. The radical operation was indicated if curative resection were expected to be achievable. Otherwise,alternative multi-disciplinary treatments were introduced especially for the hepatic metastasis or repeated recurrences. RESULTS: Median follow-up period was 37 months (range 7-69). OS was 100% at 3 years and 86% at 5 years. DFS was 62% at 3 years and 39% at 5 years. Disease recurrence developed more frequently in G2 NET, compared to G1 NET. However, there was statistically no difference for the OS between these two groups. CONCLUSIONS: Appropriate radical operation with multi-disciplinary treatments could contribute to the patients' survival in the treatment strategy of PNETs.
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