Tumour grade and primary site predict patterns of recurrence and survival in patients with resected gastroenteropancreatic neuroendocrine tumors

•Among patients with resected GEP-NETs, tumor grade and primary location predicts timing and site of disease recurrence.•Peritoneal recurrences were most commonly associated with small bowel primaries.•Among 116 patients with recurrence, not a single GEP-NET had a first site of recurrence as the lung.•Surveillance imaging frequency and type should be based on characteristics of resected tumors to optimize patient outcomes.