The Biology of AYA Cancers

A system for classifying cancers diagnosed in adolescents and young adults

Cancer types in adolescents and young adults form a unique distribution. A system for classifying them is presented.

Genomic and molecular alterations associated with early-onset and adolescent and young adult colorectal cancer

While the incidence of colorectal cancer (CRC) in the US has declined at a pace of 3% annually between 2003 and 2012, there has been an increase in the incidence of early-onset colorectal cancer (EOCRC). The reasons for this increase are unclear. Diet, the environment, the microbiome and alcohol consumption have all been proposed as contributing factors. There is the possibility that EOCRC has a unique biology. Overlapping with the EOCRC age range is CRC in adolescent and young adults (AYA) that share many molecular characteristics with EOCRC. The purpose of this review is to cover current progress in our understanding of the biology of CRC in the context of adolescent and young adult CRC and EOCRC and discuss future directions.

International evolution in AYA oncology: Current status and future expectations

Adolescents and Young Adults (AYAs) contribute approximately 1 million incident cases globally, but the great majority are underserved. In high-income countries, overall survival exceeds 80%, but the needs of this population during and after their treatment experience are poorly met, though specialized clinical programs are evolving. Engagement of national governments is advantageous and deployment of multidisciplinary teams essential. Collaboration between pediatric and adult healthcare providers is mandatory and AYAs must be given a strong voice in program development. Building and sharing international experience will hasten advances in clinical care, education, and research, while a focus on developing countries is a worthy challenge.