A Medical Council inquiry into 38 allegations of professional misconduct or poor professional performance against Dr Etop Akpan resumed in Dublin today.
The inquiry is examining concerns over Dr Akpan's care of a 29-year-old woman who died from cancer in April 2009.
Sharon McEneaney, from Carrickmacross, Co Monaghan, was the eldest of five children and worked as a manager in a crèche in Dublin.
Dr Deirdre Lynch, consultant radiologist at Our Lady of Lourdes Hospital in Drogheda, told the Medical Council inquiry that after a CT scan was performed on a patient in January 2008, she saw an abnormality which needed a biopsy.
Dr Lynch said that she issued a report on the matter and suggested there should be further clinical discussion about the case.
But she said the hospital did not have monthly multidisciplinary team meetings at the time to discuss such cases.
It was not until July 2008 that a biopsy was performed on Ms McEneaney and a malignancy was diagnosed.
Dr Lynch also told the Medical Council inquiry that the hospital is significantly understaffed with radiologists.
She said that the waiting list for certain ultrasounds was six months in 2007 and 2008, when the late Sharon McEneaney attended and was eventually diagnosed with cancer nine months later.
Dr Lynch described Dr Akpan, who qualified in Nigeria in 1984, as a very nice and fair doctor and she said she had no problems with any of his patients.
Earlier, an application on behalf of Ms Lynch to have her evidence heard in private was rejected by the Fitness to Practice Committee.
The inquiry has heard that an urgent CT scan was planned on Ms McEneaney's abdomen and pelvis for later in December 2007.
However, it was not performed until 24 January 2008.
It has also emerged that a number of doctors at Our Lady of Lourdes Hospital in Drogheda are unhappy with the transcript of interviews that they gave for a Health Service Executive inquiry into the case, which has yet to be made public.
