Women's health campaigner Vicky Phelan has said her cancer is growing again, but slowly.
On Twitter, Ms Phelan said that she was sharing the news having had time to absorb the information herself and for her family and friends to absorb it too.
Ms Phelan became a leading figure in the CervicalCheck controversy after she was awarded a €2.5m settlement by the High Court in April 2018 in a case taken against the US laboratory that carried out her cervical smear test.
She was diagnosed with terminal cancer after a false negative cervical smear test carried out as part of CervicalCheck.
In a series of tweets yesterday, Ms Phelan explained that in addition to growth in three tumours, she has developed a new "tiny - 3mm" in her lung.
She said that she "knew this day would come, and that Pembro would stop keeping all of my tumours at bay.
"But I am so very glad that I fought for Pembro. It has given me almost 3 years of a quality of life I could never have hoped for on chemotherapy."
So, I have been holding off on sharing news that my cancer is growing back (slowly, thankfully)
— Vicky Phelan (@PhelanVicky) November 2, 2020
I needed the time to absorb this news and for my family & friends to absorb it too ❤
In addition to growth in three tumours, I have developed a new (tiny - 3mm) tumour in my lung.
Ms Phelan said she is "actively researching options at the moment, and, apart from bouts of extreme tiredness at times, I am very lucky to report no other symptoms at the moment".
She said she will continue to campaign with the 221 Plus group for a tribunal that "meets the needs of the women and families affected by the CervicalCheck scandal because one of our main asks centres on providing for women who suffer a recurrence, like me.
"This cancer is not curable. It affects primarily young women with families."
In January 2019, Ms Phelan described herself as an "accidental" leader.
Speaking at the FemFest conference, she said that by challenging the Government she assumed a leadership role.
In a keynote address at the conference, Ms Phelan said: "It is an horrendous cancer. This is why I am so graphic about it.
"If there are still some women who are on the fence about having a smear test, I'm here to tell you that if you don't have a smear test and you get cancer, this is what you are up against."
