Life-saving operation: Tumour removal in utero saves foetus
22 June 2012 Last updated at 11:33 BST
Surgeons have removed a tumour (oral teratoma) from the mouth of a foetus, in what has been described as a "world first" procedure.
Following a scan at 17 weeks, mother Tammy Gonzalez said she "could see a bubble" coming out of her baby's mouth.
Baby Leyna was born five months later and Mrs Gonzalez described the doctors as saviours.