AUTHOR=Niu Renrui , Zhao Jianhui , Li Chaoyuan , Guo Fengshuo , Duan Yuchi , Luo Wenqi , Gu Rui TITLE=Isthmic spondylolisthesis combined with schwannoma occurring at the same vertebral level: a case report and literature review JOURNAL=Frontiers in Surgery VOLUME=12 YEAR=2025 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2025.1457408 DOI=10.3389/fsurg.2025.1457408 ISSN=2296-875X