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Childhood and Adolescent Cancer Classification

Childhood and Adolescent Cancer Classification

A Cancer "case" is defined as a primary cancer, as distinguished from cancer spread from another site or surrounding tissue. Unlike adult cancers that are usually tabulated by primary anatomic site, childhood cancers are more meaningfully grouped primarily by tumor morphology using the International Classification of Childhood Cancer (ICCC). The ICCC was developed under the auspices of the International Agency for Research on Cancer (IARC), the International Association of Cancer Registries (IACR) and the International Society of Paediatric Oncology (SIOP).

The childhood and adolescent cancer data presented on these web tables are classified using the Surveillance, Epidemiology and End Results (SEER), National Cancer Institute "ICCC Recode ICD-O-3/WHO2008" site/histology recode based on International Classification of Childhood Cancer, Third edition (ICCC-3). This table contains recodes based on definitions presented in: Steliarova-Foucher E, Stiller C, Lacour B, Kaatsch P. International Classification of Childhood Cancer, Third Edition. Cancer 2005;103:1457-67. © 2005 American Cancer Society and updated for hematopoietic codes based on WHO Classification of Tumours of Haematopoietic and Lymphoid Tissues (2008). The entire Extended Classification table was used for all statewide rates, and major site groupings I-XII for Public Health Region and County rates.

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Last updated February 25, 2021