Toronto Childhood Cancer Stage Guidelines

**Semantic type:** Intellectual Product

**Definition:** A malignancy-specific staging system suitable for use by population registries for 16 of the most common childhood malignancies: acute lymphoblastic leukemia, acute myeloid leukemia, Hodgkin lymphoma, non-Hodgkin lymphoma, neuroblastoma, Wilms tumor, rhabdomyosarcoma, non-rhabdomyosarcoma soft tissue sarcoma, osteosarcoma, Ewing sarcoma, retinoblastoma, hepatoblastoma, testicular and ovarian germ cell tumors, medulloblastoma, and ependymoma. The Guidelines include a two-tiered approach that provides less detailed criteria for registries with limited resources and/or limited data access (Tier 1) and more detailed criteria for better-resourced registries (Tier 2). Tier 2 stage categories may be collapsed to Tier 1 categories to preserve comparability across registries. (http://www.iacr.com.fr/index.php?option=com_content&view=article&id=153&Itemid=657)

**Synonyms:** - Toronto Paediatric Cancer Stage Guidelines - Toronto Pediatric Cancer Stage Guidelines