[Acute lymphoblastic leukaemia as a secondary malignoma after treatment of acute myeloic leukaemia (AML/M4)]

We report about very rare case of ten years old boy with diagnose of acute myeloic leukaemia which was diagnosed in his age of five (March of 2000) at Pediatric Clinic in Sarajevo. In the first phase of the complete remission autologic bone marrow transplantation was done in Italy (Ancona). Just 7 months after transplantation boy had relaps of illness in the form of acute lymphoblastic leukaemia (ALL/L2). Complete therapeutic protocol for acute lymphoblastic leukaemia was done and now boy is in complete clinical and hematologic remission.