Dr Brennan, who was the clinical director of the service from October 1990 until he took paid leave in June 1997, failed to carry out a key teston dozens of women which involves taking a sample of cells from the suspected cancer with a fine needle, the GMC was told.
The test for high risk HPV is done on the cervical screening sample, which means that women will not notice anything different when they have their regular cervical smear test.