Abby and Erin Delaney, born at the Garbose Family Special Delivery Unit of the Children’s Hospital of Philadelphia (CHOP), have become symbols of hope and medical advancement in the realm of conjoined twins. Their journey began with meticulous monitoring and care at the Center for Fetal Diagnosis and Treatment.

The Delaney twins were faced with a rare and challenging condition known as craniopagus, where they were conjoined at the tops of their heads. This condition is extremely uncommon and presents unique medical complexities. The dedicated team at CHOP embarked on a groundbreaking mission to separate them, marking a historic moment in medical history.

The journey for Abby and Erin involved careful planning, advanced medical techniques, and a collaborative effort among various specialists. The expertise of the medical team at CHOP, along with cutting-edge technology, played a crucial role in preparing for the separation surgery. The meticulous monitoring from the early stages of pregnancy through to the delivery was instrumental in ensuring the twins’ well-being.

The separation surgery itself was a monumental undertaking, given the intricate nature of their conjoined condition. The odds were daunting, with only a one percent chance of survival associated with such separation procedures. However, the medical team at CHOP was determined to defy the odds and provide the twins with a chance at individual lives.

The surgery was a success, and Abby and Erin emerged as two separate individuals, each with their own unique path ahead. The Delaney twins’ story highlights the incredible strides that medical science and expertise have taken in the field of conjoined twin separation. Their case at CHOP showcases the importance of specialized units and collaborative efforts in addressing complex medical conditions.


Abby and Erin Delaney’s journey not only brings attention to the remarkable capabilities of modern medicine but also serves as a beacon of hope for other families facing similar challenges. The success of their separation surgery is a testament to the dedication and innovation within the medical community, offering inspiration for the future of pediatric healthcare.
