Opera singer Viktoria Bolonina has revealed her heartbreaking battle with stage four brain cancer.

The performer, who was also a runner-up on the first season of The Voice in 2012, shared a confrontational photo on Instagram after revealing that an ‘orange-sized’ tumor was removed from her brain in April .

The mother-of-one spoke to the Central Coast Express Advocate on Sunday, saying she was grateful the initial operation had been a success.

“Luckily it worked,” she told the publication.

“But there are cells left, it’s not just something that can be completely eliminated.”

The star, however, received another blow after further tests revealed the tumor to be malignant.

Battle: The star received another blow after further tests revealed the tumor was malignant. Viktoria will now undergo radiotherapy and chemotherapy. Pictured with her daughter Milana, a

Viktoria will now undergo radiotherapy and chemotherapy.

“At this point, we are waiting for a result to determine if we can do radiation therapy and chemotherapy at the same time or separately,” she told the publication.

The star said doctors revealed the tumor had been growing slowly in her body over the past 10 years.

Inspiration: “She’s just amazing. She’s my inspiration and the reason I want to fight this,’ Viktoria told the publication. “I have a chance to beat this thanks to her”

Viktoria said her first trigger was that something was wrong was when she suffered “panic attacks” and “hallucinations” before performing on stage in 2018.

She also experienced “unbearable headaches” with her body twisting to the left, as the tumor was on her right side.

The star now says she will do anything to fight for her one-year-old daughter, Milana.

Signs: Viktoria said it was solely because of her panic attacks and hallucinations before performing on stage in 2018. She also had ‘unbearable headaches’. Pictured with singer Paulini Curuenavuli (left)

‘She is just amazing. She is my inspiration and the reason why I want to fight this,” she told the publication.

“I have a chance to beat this thanks to her.”

The star’s friends, Sophia Luperdi and Katrina Mottram, have started a GoFundMe page to help cover ongoing medical bills.

Help: The star’s friends Sophia Luperdi and Katrina Mottram have started a GoFund Me page to help with ongoing medical bills. Pictured: Victoria

“Any donation, no matter how small, will help ease things for our lovely Vicky,” the website reads.

‘Thank you for sparing a thought and a gift. She is an inspiration to all of us.

The stylish Viktoria appeared on The Voice Australia, where she shot to fame with her rendition of the classic hit, Bang Bang (My Baby Shot Me Down).

The song peaked at number five on the iTunes chart. It peaked at 28 on the ARIA charts.

Since 2016, she has performed annually at Woolworths Carols in the Domain.

Stylish: Viktoria appeared on The Voice where she shot to fame with her rendition of the classic hit, Bang Bang (My Baby Shot Me Down). It charted on iTunes and the ARIA charts