A Potters Bar fundraiser who has an inoperable brain tumour is set to climb the O2 to raise money for charity, and she's looking for people to join her.

Lisa Connell was diagnosed with an with an inoperable brain tumour at the age of 26, and has since undergone multiple surgeries, including Gamma Knife surgery which only reduced the tumour's size by 5 per cent, and resulted in her losing her baby.

The 44-year-old cannot have the tumour removed after an operation attempting to do so left her suffering from up to 12 excruciating spasms per day.

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A regular fundraiser, Lisa is now taking on the challenge of climbing the O2 in Greenwich, London, on Saturday, August 26, to raise money for Brain Tumour Research.

She won't be going it alone either, as she has 28 places available for people to join her on the climb and raise money for the charity.

"Since being diagnosed with a brain tumour, it was really shocking to discover that it’s the biggest cancer killer of children and adults under the age of 40, yet research into finding a cure is so terribly underfunded," said Lisa.

"It led to me working with Brain Tumour Research to help raise awareness and support the funding of the research being conducted in their Centres of Excellence.

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Welwyn Hatfield Times: Lisa with her daughter Ruby.Lisa with her daughter Ruby. (Image: Lisa Connell)

"I am inviting people to sign up to join me in the fun, possibly face their fears, and take part alongside me in my Up at The O2 fundraising event, raising a minimum of £100 for Brain Tumour Research.

"To secure a place you need to register by Friday 21 July. So hurry if you don’t want to miss out on this unforgettable experience."

Another incredible part of Lisa's story is her miracle baby, Ruby.

Nine years after being diagnosed, she fell pregnant again, but doctors told her the hormones would feed the tumour and put her life at risk.

She pushed ahead anyway, and gave birth to a daughter, who was six weeks early but "absolutely perfect" according to Lisa.

To climb the O2 with Lisa, click here.

To donate to Brain Tumour Research, visit www.justgiving.com/braintr.