Table 4.

Surveillance protocol after curative resection of pancreatic neuroendocrine tumor (panNET) with Ki76 < 20%

	Yearly follow-up	Additional follow-up	Frequency	Duration (years)
Low-risk patientsa	Clinical assessment imagingb	–	Yearly	≥ 5
High-risk patientsa	Clinical assessment imagingb	Clinical assessment laboratory testsc	Every 6 months	10

^aRisk stratification either through the newly proposed Ki67 distribution, or more accurately through the modified version of the recurrence score by Genç et al.7

^bAlternating between anatomic and nuclear methods

^cChromogranin A