title: [A new case of acute lymphoblastic leukemia with Philadelphia chromosome in the child (author's transl)].
abstract: The systematic study of the medullary karyotype in the course of haemopathies has led us to a new case of Philadelphia chromosome in an acute lymphoblastic leukemia. This was a case of a 13 year old child. Is this a particular class of haemopathy? Do such observations put a question on the dual theory of the origins of blood germ cells? The elaborate medullary karyotype in the course of haemopathy may solve this problem. A rigorously nosological classification is essential for appraising the therapeutic plan chosen and making a pronosis.
mesh_terms: D000293:Adolescent; D002904:Chromosomes, Human, 21-22 and Y; D005260:Female; D006801:Humans; D007621:Karyotyping; D007945:Leukemia, Lymphoid / Q000235:genetics*
vernacular_title: Un nouveau cas de leucémie aiguë lymphoblastique de l'enfant avec chromosome Philadelphie.