All of the following are good prognostic factors for childhood Acute Lymphoblastic Leukemia, except:
Hyperdiploidy, Female sex and pre B cell ALL are associated with good prognosis. t (12 : 21) translocation may be associated with a poor prognosis and is the single answer of exclusion. Ref: Pediatric Oncology: A Comprehensive Guide By Paul Imbach, Thomas R. Kuhne, Robe Arceci, 2004, page 23.
Hyperdiploidy
Female sex
Pre B cell ALL
t (12 : 21) translocation