Flaming Promyelocytes in Acute Hypergranular Promyelocytic Leukaemia Light and Electron Microscopic Study

Abstract
Flaming in the peripheral parts of promyelocytes was seen in 3 of 4 patients with acute hypergranular promyelocytic leukemia. In 1 of these patients the flaming was quite marked, and EM showed the flaming to correspond to greatly dilated cisternae of the RER [rough endoplasmic reticulum].