AUTHOR=Zhang Zhiqiang , Xu Mengfan , Shang Muhan , Liu Zhiqi , Yang Lei , Yu Dexin TITLE=Case report: Malignant priapism: penile metastasis from prostate cancer with low serum PSA level JOURNAL=Frontiers in Oncology VOLUME=14 YEAR=2025 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2024.1395301 DOI=10.3389/fonc.2024.1395301 ISSN=2234-943X