25th July 2024

You are reviewing an 11-year-old boy in clinic with his mother. He has recently been started on chemotherapy

You are reviewing an 11-year-old boy in clinic with his mother. He has recently been started on chemotherapy for acute lymphoblastic leukaemia. His primary presenting complaint was splenomegaly and his white cell count was 80 x 10⁹/L. Cytogenetic analysis has found these abnormalities t(12;21), t(9;22) and abnormal 17p.

Which of the following is a favourable prognostic factor?

Select the SINGLE most appropriate option from the list below. Select ONE option only.