Australian Survivor All Stars contestant Jacqui Patterson has revealed that she was recently diagnosed with a tumour in her head.

The marriage celebrant, who is still competing on this season of Survivor, opened up about how she's coping with her second encounter with cancer.

"I'm really p---ed off but what can you do about it? Just got to roll with the punches don't you, not just cry about it?" the 52-year-old told Sydney Confidential.

Jacqui Patterson. (Instagram)

Patterson explained how she noticed the lump in her head in February, and only discovered it was tumour after consulting a second opinion.

"I went to the doctor who said it was just a cyst and that it was fine and not to worry about it. Then I went to my skin doctor in Byron and he did a biopsy then two days later he said 'you've got a malignant tumour'.

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"So I was straight in for a CT scan and then I went to a specialist who said 'I'm not going to touch you until you've had a pet scan', which I had last Friday.

"The result of that is that it hasn't spread which is great. Their concern now is whether it's a primary, or secondary — they're going to operate ASAP."

Sadly, this isn't the first time Jacqui has dealt with cancer. Two years ago, she beat cancer after doctors diagnosed her with a stage four melanoma.

"I thought 'you've got the wrong number'," she said. "I think you're just taken aback by it all and a bit gobsmacked and it's not until you're sitting in the specialist's office and they're showing you pictures of what they're going to do."

Since her first appearance on the reality program, Jacqui turned to female bodybuilding and has no intentions of not competing after she's had the surgery.

"I'm thinking if I can get this operation done this week, I'll have a week off then go straight back into training," she said.

"I think positivity is the only way to go because you don't want to be feeding negative energy."