article_snippet: Matthew was born with Trisomy 13, a rare chromosomal disorder which cause multiple congenital abnormalities which result in severe physical and mental impairment .
article_snippet: Trisomy 13 is a chromosomal disorder which can lead to multiple congenital abnormalities which result in severe physical and mental impairment.
article_snippet: Trisomy 13 affects only one in 16,000 births, and Trisomy 13 is so rare that Matthew is currently the only person in Northern Ireland with the condition.
article_snippet: Trisomy 13, or Patau syndrom, is a chromosomal abnormality caused by an extra copy of chromosome 13 in every cell.
article_snippet: The condition occurs in  one in 16,000 live births and is the third most common autosomal trisomy in newborns.
article_snippet: Many babies with Trisomy 13 are stillborn or die within the first few days after being born - the life expectancy of affected babies is just 2.5 days.
article_snippet: doctors explained that Trisomy, which is also known as Patau syndrome, is caused by an extra copy of chromosome 13 in every cell.
highlights_snippet: Matthew Cartmill was born with Trisomy 13, a chromosomal disorder .
  
highlights_snippet: The condition is caused by an extra chromosome 13 in every cell .
  