Treatment options for PNET liver metastases: a systematic review

Table 2 ENETS staging system for PNET [28]

Stage	T	N	M
I	T1	N0	M0
IIA	T2	N0	M0
IIB	T3	N0	M0
IIIA	T4	N0	M0
IIIB	Any T	N1	M0
IV	Any T	Any N	M1

ENETS European Neuroendocrine Tumor Society, PNET pancreatic neuroendocrine tumors, T1 tumors < 2 cm limited to the pancreas, T2 2–4 cm limited to the pancreas, T3 > 4 cm limited to the pancreas or invading the duodenum or common bile duct, T4 tumor invading adjacent structures or large vessels, N0 no regional lymph node metastases, N1 regional lymph node metastases, M0 no distant metastases, M1 distant metastases

ISSN: 1477-7819