title: Ph1-positive T lymphoblastic transformation.
mesh_terms: D000328:Adult; D002904:Chromosomes, Human, 21-22 and Y / Q000648:ultrastructure*; D006801:Humans; D007951:Leukemia, Myeloid / Q000235:genetics* / Q000473:pathology; D008297:Male; D013601:T-Lymphocytes / Q000473:pathology*