the nhs 's first privately run hospital ignored a spot check by its own inspectors that found huge improvements in standards .
the vital findings have been suppressed for nearly four months , and have only emerged now after the care quality commission quietly revised its report .
in january the commission branded hinchingbrooke in cambridgeshire as ` inadequate ' and placed it in special measures , along with a dozen of the worst hospitals in the country .
but today the watchdog will upgrade this to ` requires improvement ' and publish a glowing report .