Acute promyelocytic leukemia (APL) is characterized by hyperproliferation of promyelocytes, progenitors that are committed to terminal differentiation into granulocytes, making it an ideal disease ...

1% promyelocyte, 6% myelocytes, and 1% metamyelocytes. The majority of blasts demonstrated reniform or bilobed nuclear features. Auer rods were seen in many blasts along with prominent cytoplasmic ...