T-lymphoblastic leukaemia (T-ALL).
D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D007945:Leukemia, Lymphoid / Q000175:diagnosis / Q000453:epidemiology; D008297:Male; D012737:Sex Factors; D013601:T-Lymphocytes