You are a PA in a GP setting and you are seeing a 61-year-old male. He has presented with pain when passing urine and pain in the rectum. He is also reporting that when he passes urine there is a weak stream. You conduct some basic observations and they are as follows: BP 120/80, HR 110, RR 30, O2 saturations 99% on room air and a temperature of 38.3. You conduct a digital rectal examination and you note a tender, swollen prostate. What is the most likely diagnosis?