Re: High PSA Biopsy Negative
Because you're in Japan, this will probably be of no use to you, and I certainly can in no way vouch for the test's accuracy, but a Canadian company called Mitomics has a new test called the Prostate Core Mitomics Test. They claim their test, using your biopsy tissue samples, can identify false negatives. They say that cancer anywhere in the prostate causes a "field effect" that changes the mitochondrial DNA slightly everywhere in the prostate. So even if the biopsy cores missed the tissue where cancerous cell alteration occurred, they can still tell from them if the prostate had cancer somewhere close by.
This appears to be legitimate, and is very interesting, if true.