Challenges and opportunities in rare cancer research in China

Cancer is one of the major public health challenges in China.Rare cancers collectively account for a considerable proportion of all malignancies.The lack of awareness of rare cancers among healthcare professionals and the general public,the typically complex and delayed diagnosis,and limited access to clinical trials are key challenges.Recent years have witnessed an increase in funding for research related to rare cancers in China.In this review,we provide a comprehensive overview of rare cancers and summarize the status of research on rare cancers in China and overseas,including the trends of funding and publications.We also highlight the challenges and perspectives regarding rare cancers in China.