A STORY OF REMARKABLE RESILIENCE: THE MEDICAL MIRACLE THAT TRANSFORMED THORACOPAGUS TWINS INTO TWO INDEPENDENT GIRLS

When Maggie and Dom Altobelli went for their routine twenty-week ultrasound in Chicago, they received life-altering news. The imaging revealed that they were expecting thoraco-omphalopagus twins—a rare condition where two babies are joined at the chest and abdomen. The sisters shared a liver, a diaphragm, and crucial abdominal wall structures, making their prospective separation an extraordinarily complex medical challenge. To give their daughters the best possible chance, the family traveled to the Children’s Hospital of Philadelphia, a premier center for complex pediatric surgery.

On November 18, 2020, Addy and Lily were born into a specialized medical team dedicated to their care. Over the next year, a multidisciplinary staff of surgeons, radiologists, and nurses meticulously planned every phase of the upcoming separation. Using advanced 3D modeling and surgical rehearsals, the team mapped out every incision and shared organ structure long before entering the operating room.

The high-stakes procedure took place when the girls were nearly ten months old. In a surgery lasting over ten hours, surgeons successfully divided the shared liver and diaphragm, carefully reconstructing the chest and abdominal walls of each child. At exactly 2:38 p.m., the surgical team officially separated the two sisters. Today, Addy and Lily live independent, healthy lives, serving as a testament to surgical excellence and incredible parental endurance.