The prognostic significance of IDH2 mutations in AML depends on the location of the mutation
Green CL, Evans CM, Zhao L et al.
University College London Cancer Institute, London, UK.
Blood 2011;118:409–12.
Editor’s note: Mutations in isocitrate dehydrogenase isoform-2 (IDH2) have been reported in 9–19% of acute myeloid leukemia (AML) cases with a predominance of R140 lesions over R172 lesions. There is some evidence that R172 lesions confer a poor prognosis although this is based on small numbers of patients.