A doctor missed the melanoma in a patient's foot and later changed his records to mislead the Health and Disability Commissioner, a court has heard.
Hong Sheng Kong has denied a charge of wilfully attempting to pervert the course of justice and is on trial in the Auckland District Court.
Peihong Du wept as she told the court that she took her father, Chanxing Du, 73, to see Kong, their GP, in July 2005 because of a growth on his heel.
She said the lesion was about the size of her small fingernail. Kong told them it was the result of her father's diabetes.
Ms Du asked if the complaint should be referred to a specialist but Kong said they should be more concerned with Mr Du's high blood pressure and diabetes.