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The Korean Journal of Pathology 2003;37(3): 221-223.
Mucinous Adenocarcinoma of the Prostate: A Case Report.
Hyun Jin Son, Jae Sin Jeong, Woo Sung Moon, Myoung Jae Kang
Department of Pathology, Chonbuk National University Medical School, and Institute for Medical Sciences, Chonju, Korea mjkang@moak.chonbuk.ac.kr
The diagnosis of mucinous adenocarcinoma of the prostate (MAP) requires that at least 25% of the tumor consists of pools of extracellular mucin. According to the above criteria, MAP is rare and about 70 cases have been reported in literature. Here we report a case of MAP arising in a 70-year-old man. In the present case, the proportion of the mucinous component was up to 95% of the total tumor volume, and Gleason's score is 8 (4+4). The tumor cells were prostatic specific antigen (PSA)-immunoreactive in mucinous and nonmucinous components. Despite the mucin pools, the tumor cells themselves failed to stain with any of the mucin stains.