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Professor Thomas Stamey of Stanford University Medical School has publicly stated what a number of experts have felt privately for years.
Whilst UK experts have been suggesting that as many as two thirds of men with high PSA readings merely had an enlarged, non-malignant prostate, Professor Stamey goes further. "The PSA era is over; it indicates nothing more than the size of the prostate".
Critics add that even after a high PSA reading and a biopsy which indicates cancer, there is still no real indication whether the cancer is fast or slow-growing. By far the majority are slow-growing and, only recently, the Royal Marsden confirmed that in at least 50 per cent of cases carefully monitored observation (active surveillance) was far preferable to surgery.