AUTHOR=Luo Simin , Chai Jie , Ding Linxiaoxiao , Tang Song TITLE=Excellent efficacy of trastuzumab deruxtecan in a patient with HER2-positive advanced breast cancer complicated by pulmonary lymphangitic carcinomatosis: a case report and literature review JOURNAL=Frontiers in Pharmacology VOLUME=Volume 16 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2025.1574286 DOI=10.3389/fphar.2025.1574286 ISSN=1663-9812