Cullen Adams
Cullen Adams suffers from acromicric dysplasia. This type of dwarfism is characterized by abnormally short hands and feet, and delayed bone maturation leading to short stature, and mild facial abnormalities. Like all forms of dwarfism, it would be difficult to diagnose while the baby was still in the womb.
This type of dwarfism is a little more extreme because of the added health problems involved. And because this form is harder to track genetically, did Cullen really want to pass this one to his children? Cullen and Charli had some really big decisions to make in the near future.