What does it mean if in addition to cancer my biopsy report also says acute inflammation (acute prostatitis) or chronic inflammation (chronic prostatitis)?

Inflammation of the prostate is called prostatitis.  Most cases of prostatitis reported on a biopsy are not caused by infection and do not need to be treated.  In some cases, inflammation may increase you PSA level, but it is not linked to prostate cancer.  The finding of prostatitis on a biopsy of someone with cancer does not affect their prognosis or the way the cancer is treated.

-www.cancer.org