Since then, the t(16;21)(p11;22) and/or its fusion product FUS/ERG has been reported in 66 cases of AML and 3 cases of acute lymphoblastic leukemia (ALL; http://cgap.nci.nih.gov/Chromosomes/Mitelman, database updated May 15, 2013). The gene discussed is ERG; the disease is acute myeloid leukemia.