Sezer Çümen, 34, living in Denizli, made a stem cell donation six years ago at Kızılay to give hope to a patient he didn't know. Years later, this donation saved the life of his mother, who was battling leukemia. The discovery that the donor, who was a 100% match for the patient during a screening process involving 1.2 million people at the Turkish Stem Cell Coordination Center (TÜRKÖK), was her own son, turned the situation into a "one in a million" story of hope, as described by doctors.
Last Updated: Wednesday, August 19, 2026 10:12 AM