<unk>  is diagnosed from tissue by a pathologist, which may come from: *a needle biopsy taken via the rectum and, *surgical removal of prostate tissue: *transurethral resection of the prostate - removal of extra prostate tissue to improve urination (a treatment for benign<unk>  hyperplasia), *radical<unk> tomy - complete removal of prostate and seminal vesicles (a treatment for prostate cancer). Blood tests for prostate specific antigen (PSA), digital rectal examination, ultrasound scanning of the prostate via the rectum, fine needle aspiration or medical imaging studies (such as magnetic resonance imaging) are not useful for diagnosing<unk> .
High-grade prostatic intraepithelial neoplasia
Benign prostatic hyperplasia
Asymptomatic inflammatory prostatitis
Histopathologic diagnosis of prostate cancer
Invasive urothelial carcinoma
Chronic bacterial prostatitis
Granulomatous prostatitis
Radiation proctitis