A new variety of acute non-promyelocytic leukemia with t(15;17)]

Three cases of a new variety of acute leukemia have been reported. The main features were: hyperleukocytosis made of large-sized blasts with a double shaped nucleus, few or no granulations in the cytoplasm, and in a few cell faggots or unique Auer rods; mycloperoxydase reaction was positive. This feature was associated with disseminated intravascular coagulation syndrome and t(15;17)(q22;q21) translocation in the majority of mitoses.