CD7+ CD56 + AML might constitute a distinct biologic and clinical disease entity. Our data showed that CD7+CD56+ AML associated with less anemia, overexpression of PgP and CD34 and a high incidence of central nervous system involvement.

• CD7+CD56+AML具有独特的临床生物学特征,较少贫血,高表达PgP和CD34,常伴有中枢神经系统浸润。