The immunophenotype of pDCs in pDC-AML was explored by others in a few studies [6,7,8,10] with variable results reported; CD34, TdT and CD56 were positive in 61%, 40% and 13% of cases, respectively, in one study [6] compared to 33%, 11% and 0% of cases, respectively, in another report [8]. The gene discussed is CD34; the disease is acute myeloid leukemia.