Thyroid Cancer Active Surveillance Program Retention and Adherence in Japan

Small papillary thyroid cancers are the most common type of thyroid cancer, with the incidence increasing across the world. Active surveillance of appropriate cancers has the potential to reduce harm from overtreatment but is a significant de-escalation from prior practice. Mechanisms that inform the rates of retention and adherence have not been described and need to be understood if broader uptake is to be considered.