A thumb that has an extra bone (called a phalanx) that can vary in size and shape.
« Back to Glossary IndexNews
Related News

Feb 25th, 2025
By Kelly McKenna My name is Kelly McKenna, and I’m a single mom to two amazing kids. One of them is an eight-year-old boy who has Fanconi anemia (FA). Logan’s medical journey started during my pregnancy at the 20-week anatomy...

Sep 27th, 2024
Katherine (middle) with 2023's recipient Ana Tabar (left) and FCF CEO Isis Sroka (right) The De Los Santos family first experienced the complexities of Fanconi anemia as they endured the devastating loss of their daughter, Gracie, who passed away from...

May 7th, 2025
At just 18 years old, Cale Ferrin has already built a career as an actor, advocate, and creator. With appearances across TV, film, music videos, and ad campaigns, Cale’s passion for storytelling shines through each project he approaches. His work...