AUTHOR=Luo Yunhao , Zhang Jing , Wu Minggang , Huang Qiuyun , Liu Fangqin , Qiao Lang TITLE=Contrast-enhanced ultrasound of collecting duct carcinoma in the renal: a case report misdiagnosed as renal abscess on computed tomography scan JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1511009 DOI=10.3389/fonc.2024.1511009 ISSN=2234-943X