NewsRND: The enigma of the girl who transforms into bone while her identical twin remains healthy
16 Jul 2023

Sisters Cayetana and Celia, 12, share the same genetic mutation, but only one of them suffers from an ultra-rare disease that turns muscle into bone plates. Celia has practically no symptoms, while Cayetan's muscles are rapidly transforming into bone. Pediatrician Federico MartinĂ³n Torres co-directs the medical team that works against the clock to understand why the disease is primed with a sister and respects her twin. "We are always behind the disease," acknowledges the doctor, head of Pediatrics at the University Clinical Hospital of Santiago de Compostela.