All of the following acute myeloid leukemia are diagnosed regardless of blast count except

WHO classification mandates diagnosis of AML only when >20% blasts are present in the marrow. However, in the following three scenarios, this is overruled and AML may be diagnosed even if blast count is <20%. AML with t(8;21) AML with t(15;17) AML with inv (16) or t(16;16)