A schoolgirl from Wales has become the first child in the world to be diagnosed with two different types of leukaemia.
Lauryn Robinson suffers from what doctors term as 'Dual Hit Leukaemia'. She suffers from Acute Lymphoblastic Leukaemia as well as Non-Hodgkin Lymphoma.
Doctors treating Lauryn at Liverpool's Alder Hey Children's Hospital are having to treat her cautiously because they have never seen a case like hers before.
'They are consulting with experts up and down the country because they've never seen this in a child before," said Lauryn's mother, Emma Robinson.
Lauryn was classed as a fit and healthy seven-year-old until March this year when her parents noticed her face seemed swollen one day after school.
Lauryn's mother said her daughter's condition is so rare that doctors are taking Lauren's treatment one step at a time. She said: 'They are consulting with experts up and down the country because they've never seen this in a child before'
Dual Hit Leukaemia is the term used when a person develops two types of leukaemia at the same time. It is incredibly rare and has only ever been recorded in a couple of hundred people in medical history.
It is estimated that the risk of developing the condition is one in two billion.
When her eyes became puffy and raised, they took her to the family GP who referred her to hospital.
Tests were carried out and doctors diagnosed Acute Lymphoblastic Leukaemia which affects hundreds of children every year.
However, the chemotherapy made her condition worse and caused Lauryn to suffer from seizures and a mini-stroke.
More tests were then carried out and doctors discovered only-child Lauryn also has Non-Hodgkin lymphoma, another type of leukaemia.
The chances of developing Double Hit Leukemia is so rare that it affects only one in two billion people.
Emma, 34, said: 'She's still really young so we've tried to protect her to some extent. But she knows that she is poorly and that she needs lots of rest and medicine to get better.'