A young woman asked her mum 'am I going to die?' after suffering horrific pain in her head and being rushed to hospital.
Samantha Thompson-Morris was born prematurely and has been in and out of hospital for all 22 years of her life.
Just last year, she underwent 13 brain operations in eight months after she was found to have cysts and fluid on her brain.
Sam took ill again last month with "terrible pains" in her skull and spine and knew something was wrong.
Mum Lisa Jones told the Liverpool Echo: "The pain in her skull got so bad she couldn't walk and she was rushed to the Royal a week ago because there's no A&E in Walton.
"I left messages with Walton to tell them she was deteriorating but they haven't got back to me. Now, Sam has been in the Royal for seven days but they aren't equipped to deal with her but Walton won't transfer her there."
Lisa said her daughter needs an MRI scan that can only be carried out using specialist equipment at the Walton Centre, but her daughter is yet to be transferred and as a result, she claims she is "deteriorating" in hospital where "she can't be treated".
She added: "She can't feel her left leg and now her right leg is going. She's in pain and is so upset.
"She thinks she's going to die and for a 22 year old to think that it's horrific. The Royal can't deal with Sam, they haven't got the facilities, but the Walton isn't letting them transfer her. I just can't understand it."
Lisa, who herself is battling stage four cancer, said she is "struggling to fight". "I've tried not to cry because if I did, I wouldn't stop.
"My own immune system is shutting down now through stress, it's heart-breaking to go in every day and watch her sob, she's in so much pain and no-one is doing anything for her. The Royal has been great but there's only so much they can do.
"It's been seven days and we still don't know if this paralysis is for life, has it been left too late? She's already gone through so much, she doesn't need all of this.
"Things have gone progressively worse and I'm scared she's being left. She's in a bed she can't get out of."
Lisa confirmed to the Echo on Monday afternoon that an MRI scan has since been offered to her daughter, but was "fuming it had taken so long".
A Walton Centre spokeswoman said: "The Walton Centre is working with Liverpool University Hospitals to ensure a safe, effective treatment for the benefit of the patient and to ensure accurate assessment of any future treatment required."