[Béla Bartók's disease: a hidden leukemia, a defeated leukemia]. / La maladie de Béla Bartók: une leucémie cachée, une leucémie vaincue.

The hematological disorder Béla Bartók suffered during his exile in the United States and that led to his death has long remained mysterious, as well as the lung disease that accompanied it. The present historical evocation offers us the opportunity to explain the remarkable biological and therapeutic advances obtained in the field of chronic myelocytic leukemia during the last decades.