Proud mum Heather with her baby daughters 
The condition, called craniopagus, is the least common type of conjoined twins 

The complex operation was led by Dr. Gregory Heuer, MD, PhD, in collaboration with plastic surgeon Dr. Jesse Taylor, MD.

Heather and Riley Delaney, the parents of the conjoined twin girls, received the news about their unique pregnancy approximately 11 weeks into 2016.

The babies were able to undergo surgery aged 10 months 
Doctors operated for 11 hours
The girls were looked after by 30 medical professionals at the Children’s Hospital of Philadelphia 

During that time, it was not yet possible to determine if the twins would be eligible for separation surgery.

On July 24, 2016, the twins were delivered via Caesarean section, 10 weeks before their due date. At birth, they weighed a mere two pounds and one ounce each.

Presently, the twins are under the vigilant care of the medical team and are reported to be recuperating remarkably well.

Parents Heather and Riley Delaney first learned that they were expecting conjoined twins about 11 weeks into the pregnancy 
The team first meticulously separated the infants’ shared blood vessels and dura, the tough protective membrane surrounding both brains 

Heather and Riley eagerly anticipate the upcoming moment when they will finally be able to bring Erin and Abby home to North Carolina.

Heather joyfully expressed, “When we go home, it will be a grand celebration: a warm welcome, baby shower, and their first birthday all rolled into one.”