The American surgeon
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The American surgeon · Aug 2016
Indications for Surgical Resection in Low-Grade Pancreatic Neuroendocrine Tumors.
The role of surgical resection in low-grade pancreatic neuroendocrine tumors (P-NET) is unclear. The patients diagnosed with low-grade P-NET from 1988 to 2012 were identified in SEER. Five hundred and sixty-one patients met the inclusion criteria. ⋯ Cox regression model showed that the association with LNM (P = 0.0025) and surgery (P < 0.0001) was significant. Surgery was associated with an improved disease-free survival for tumors >2 cm (2-4 cm, 84.4% vs 26.0% at five years; P = 0.0003, and >4 cm, 80.5% vs 49.5% at five years; P < 0.0001) but not for those with tumor size <2 cm (P = 0.4525). In conclusions, low-grade P-NETs in patients with tumor size >2 cm showed an increased risk of LNM and improved survival with resection.