Mucinous urothelial‐type adenocarcinoma of the prostate

A case of mucinous urothelial‐type adenocarcinoma of the prostate in a 68‐year‐old man is reported. This is a rare neoplasm which probably originates from the proximal prostatic ducts or the prostatic urethra. This tumor does not express prostate‐specific antigen, in contrast to the more common mucinous adenocarcinoma of the prostate, and may be misdiagnosed as a secondary, mainly colorectal, tumor. Clinical examinations and immunohistochemistry may help in the differential diagnosis. Owing to local recurrences two transurethral resections of the prostate were performed in our patient during 3 years of follow‐up. He died from this tumor 40 months after the first biopsy.