This study was aimed to identify the characteristics of childhood myeloid/'natural killer cell precursor acuternleukemia (M/NKPAL), and to summarize the therapeutical experiences of this rare hematologic malignancy. A childrncase of M/NKPAL accompanied by CNS leukemia was enrolled in this study, the therapeutic regiments and the results ofrnlong time following up were analysed and evaluated. The results showed that the unusual child case of M/NKPAL withrnCNS infiltration was diagnosed, showing immunophenotype of CD7+, CD33+, CD3展开▼