age 46, PSA level 4.4 (3/2012), 4.8(5/2012 after 2 weeks cipro) 5.2 (9/2012 after 2 weeks cipro) WBC in urine 4-6 (3/2012), Many (5/2012 after 2 weeks cipro) 8-10 (9/2012 after 2 weeks cipro) abd US Prostate: normal (30cc), TRUS decrease echognicity in TZ is observed (32cc). scheduled for TRUSB What can be the problem?