AUTHOR=Zhang Yuanyuan , Li Xiang , Gao Haiming , Qiu Chuang , Liu Xiaoliang TITLE=Case report: The smallest 9p21.3 microdeletion involving CDKN2A but not CDKN2B causes multiple plexiform neurofibromas JOURNAL=Frontiers in Oncology VOLUME=15 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2025.1437093 DOI=10.3389/fonc.2025.1437093 ISSN=2234-943X