A baby born two months after his mother was put on life support is home and doing well, hospital authorities in south-western Poland said.
In a rare case, doctors at Wroclaw's University Clinic kept a pregnant woman on life support for 55 days to allow her 17-week foetus to grow until it could be born.
Professor Andrzej Kuebler, an anaesthesiologist, said it was the youngest pregnancy ever that he is aware of that has been saved in a brain-dead mother.
The 41-year-old woman had a brain tumour that she did not want to have removed due to the risks attached, and that eventually caused terminal brain damage.
She was brought to the clinic in November, unconscious, with no brain activity and was put on life support because of the pregnancy.
She was pronounced dead when life support was turned off after the birth.
The boy, born in the 26th week by Caesarean section, weighed 1kg (2lbs 2oz).
He was put in intensive care and spent three months in an incubator.
Monika Kowalska, a spokeswoman for the clinic, said he was discharged last week.