| Stage | Definition |
|---|---|
| A | Complete gross resection of primary tumor, with or without microscopic residual disease. Intracavitary lymph nodes not adherent to the primary tumor are histologically negative. Nodes adhered to the surface or within the primary tumor can be positive. Liver histologically free of tumor |
| B | Grossly unresected primary tumor. Lymph nodes are the same as in stage A. Liver histologically free of tumor |
| C | Complete or incomplete resection of primary tumor. Intracavitary lymph nodes not adhered to the primary tumor are histologically positive. Liver histologically free of tumor |
| D | Dissemination of disease beyond intracavitary nodes (i.e.,distant lymph nodes, bone, bone marrow, liver, or skin) |
| DS | Infants <1 year of age with stage IV-S disease (see Children’s Cancer Group |
From: Chapter 139D, Neuroblastoma
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