From: Childhood Liver Cancer Treatment (PDQ®)
PDQ Cancer Information Summaries [Internet].
Bethesda (MD): National Cancer Institute (US); 2002-.
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Table 2. Definition of Evans Surgical Staging
| Evans Surgical Stage | Definition |
|---|---|
| Stage I | The tumor is completely resected. |
| Stage II | Microscopic residual tumor remains after resection. |
| Stage III | There are no distant metastases and at least one of the following is true: (1) the tumor is either unresectable or the tumor is resected with gross residual tumor; (2) there are positive extrahepatic lymph nodes. |
| Stage IV | There is distant metastasis, regardless of the extent of liver involvement. |