Because PSA is secreted both by normal cells and cancer cells, its levels could be high for other reasons and not necessarily cancer: age, an inflammation of the prostate gland, or even a bicycle ride. But most often when doctors receive a high reading, they send their patients to do a biopsy, just to be on the safe side.

Cleveland Diagnostics is developing a technology and test kit that can identify the PSA that specifically comes from cancer cells.

Read the article here.

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