Weng W.-C.WEI-CHOU LINYEONG-SHIAU PUHONG-JENG YUCHAO-YUAN HUANG2021-02-022021-02-0220111879-5226https://www.scopus.com/inward/record.uri?eid=2-s2.0-79959601495&doi=10.1016%2fS1879-5226%2811%2960019-5&partnerID=40&md5=5fbedac547021b3e286113e899d74a82https://scholars.lib.ntu.edu.tw/handle/123456789/544168The lymph nodes and bones are the most common sites of metastases in advanced prostate cancer. However, an unusual clinical presentation or one that mimics another entity may make diagnosis difficult. We report a male patient with metastatic prostate cancer who presented with a primarily localized buccal tumor. Prostatic origin was highly suspected only after positive results of prostate-specific antigen staining from biopsy pathology. We share our clinical experience and review the literature. ? 2011 Taiwan Urological Association.[SDGs]SDG3antiandrogen; prostate specific antigen; aged; androgen deprivation therapy; article; cancer staging; case report; Gleason score; human; immunohistochemistry; male; mouth metastasis; mouth tumor; nuclear magnetic resonance imaging; prostate adenocarcinoma; prostate biopsy; soft tissue metastasis; Taiwan; transrectal ultrasonography; treatment outcome; tumor celljournal article10.1016/S1879-5226(11)60019-52-s2.0-79959601495