title: Philadelphia-positive blast crisis masquerading as acute lymphoblastic leukaemia in children.
mesh_terms: D001853:Bone Marrow / Q000473:pathology; D001854:Bone Marrow Cells; D002648:Child; D002675:Child, Preschool; D002904:Chromosomes, Human, 21-22 and Y; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007223:Infant; D007945:Leukemia, Lymphoid / Q000175:diagnosis*; D015470:Leukemia, Myeloid, Acute / Q000175:diagnosis / Q000235:genetics*