In an interview on RTÉ's Ray D'Arcy programme, Ms Phelan said she knew when she took her case that there were other women involved but she could "never have imagined the magnitude" of the problem.
Patrick Lynch from the HSE says a number of the 208 women could have benefited from earlier intervention.
Despite now being the head of the HSE which oversees CervicalCheck, Mr O'Brien has claimed he only learned of the Vicky Phelan case from media reports.
"I'm very upset to be honest, to think that there is 17 women, it was bad enough that I knew there was three, I'm quite upset today", Phelan said.
Kilkenny woman Vicky Phelan, who is terminally ill brought the issue to light recently after she settled a case with a United States lab last week when she was wrongly told she had no abnormality in a 2011 smear.
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Ovechkin scored just 86 seconds into the game as he blasted a shot from the high slot area past Penguins goaltender Matt Murray . Kevin Fiala scored the game-winning goal at the 5:37 mark of the second overtime period after taking a pass from Craig Smith.
"Two hundred and eight women went for a vital screening for a life-threatening illness and they were wrongly given the all clear".
However, it has yet to be confirmed the number who have died as a result of cervical cancer.
"This is a massive patient safety issue, look what has been uncovered because of it".
It was confirmed yesterday that 162 women were not told about the review and 17 have died.
However, the Taoiseach said that despite the controversy, "cancer screening does work".
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Moments later, Bayern came within inches of an equaliser when Navas denied Mueller with a reflex save. The likes of Luka Modric and former Bayern star Toni Kroos will have a massive impact from midfield.
CervicalCheck's Clinical Director Dr Gráinne Flannelly stepped down from her position over the weekend, saying that she is sorry that recent events have caused distress and worry to women.
Mr Harris said he did not have "specific figures" but agreed with Fianna Fáil's Stephen Donnelly that it could be in the region of 1,500.
It comes as Taoiseach Leo Varadkar has said there will be an inquiry into the controversy over the screenings.
It has also been revealed that a helpline for women concerned about this matter has now received 6,000 calls. "But her courage and tenacity has done a great service to the women of Ireland and her actions will ultimately lead to improvements for all", he said. All of the other women affected would also be informed by today and given an appointment with a clinician free of charge.
Vicky Phelan's lawyer, Cian O'Carroll, called the conduct throughout the process appalling and said, "it is particularly disgusting when you learn of the number of people that have died".
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This occurred despite Italy granting Alfie citizenship so that he could arrive in the country and receive medical care. The parents' campaign was backed by the pope and Christian groups, which helped draw global attention to the case.
Meanwhile, the Taoiseach says he will not fire HSE boss Tony O'Brien after the CervicalCheck scandal.