We also found mutations in genes seldom reported in inherited BMF (IBMF), such as <i>SAMD9</i> and <i>SAMD9L</i> (N = 16 of the 86 patients, 18.6%), <i>MECOM/EVI1</i> (N = 6, 7.0%), and <i>ERCC6L2</i> (N = 7, 8.1%), each of which was associated with a distinct natural history; <i>SAMD9</i> and <i>SAMD9L</i> patients often experienced transient aplasia and monosomy 7, whereas <i>MECOM</i> patients presented early-onset severe aplastic anemia, and <i>ERCC6L2</i> patients, mild pancytopenia with myelodysplasia.
Deregulated expression of EVI1 is strongly associated with monosomy 7 and 11q23 abnormalities, which are known to be associated with poor response to treatment.
Besides inv(3)/t(3;3), EVI1(+) was significantly associated with chromosome abnormalities monosomy 7 and t(11q23), conferring prognostic impact within these two cytogenetic subsets.
Acute myelogenous leukemia with monosomy 7, inv(3) (q21q26), involving activated EVI 1 gene occurring after a complete remission of lymphoblastic lymphoma: a case report.