Retired pathologist Michael Bottrill has won his appeal to stop one of the victims suing him for a second time.
Dr Bottrill had appealed against a High Court decision granting a woman who developed cancer a retrial of her civil claim for exemplary damages.
The woman, whose name is suppressed, sued Dr Bottrill, alleging he misread four cervical smear slides between 1990 and 1994. She developed invasive cancer and had a hysterectomy and radiation treatment.
Her exemplary damages claim against him failed in 1999 but a judge later granted her another trial based on new evidence - that Dr Bottrill had misread many other cervical smear slides after Sydney laboratories re-examined 23,000 slides checked by the Gisborne pathologist.
In a written judgment issued yesterday, four of the five Court of Appeal judges ruled that the woman should not get a second chance at suing, although Justice Thomas, dissenting, said refusing her a new trial would be a miscarriage of justice.