AUTHOR=Wu Yulian , Wang Xidan , Yang Daoling , Tao Xiaoying TITLE=A case report of a spherical mass in the right atrium: myxoma or thrombus? JOURNAL=Frontiers in Oncology VOLUME=Volume 15 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1581972 DOI=10.3389/fonc.2025.1581972 ISSN=2234-943X