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Definition of M-stage classifications
| AJCC and ENTES M-stage classifications | Modified M-stage classifications |
|---|---|
| M0-stage, no distant metastasis M1-stage, distant metastasis |
mM0-stage, no distant metastasis mM1-stage, only liver metastasis mM2-stage, other single distant organ or two organs metastases mM3-stage, three or more organs metastases |
AJCC American Joint Committee on Cancer; ENETS European Neuroendocrine Tumor Society
