Blue nevus and melanosis of prostate.
D006801:Humans; D008297:Male; D008548:Melanosis / Q000473:pathology*; D009508:Nevus, Pigmented / Q000473:pathology*; D011467:Prostate / Q000473:pathology*; D011468:Prostatectomy; D011471:Prostatic Neoplasms / Q000473:pathology*