Prognosis may be better, though likely still worse than de novo:
Acute myeloid leukemia with t(15;17)(q22;q12)
Acute myeloid leukemia with inv or t(16)(p13.1q22)
Caution: isolated del(20q) is uncommon in this setting, and if seen in the absence of convincing dysplasia or increased blasts, may not indicate a therapy-related myeloid neoplasm (Sun 2011).
