AUTHOR=Fan Linghua , Jiang Jie , Zhang Yan , Han Xiaoning , Ding Wenhui , Xue Xiaodi , Jiang Yimeng TITLE=Case Report: A rare case of Noonan syndrome with multiple lentigines manifesting as cardiac enlargement JOURNAL=Frontiers in Cardiovascular Medicine VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/cardiovascular-medicine/articles/10.3389/fcvm.2025.1490436 DOI=10.3389/fcvm.2025.1490436 ISSN=2297-055X