Microscopical analysis of PB and BM at CNL diagnosis. (A) Neutrophilia in PB. (B) BM examination shows hypercellularity resulting from proliferation of the myeloid lineage without an increase in myeloblasts. The pictures were acquired by a Leica DM4B widefield microscope equipped with an Olympus UC90 camera: original magnification ×20 (A) and ×50 (B), respectively; May-Grünwald-Giemsa stain. The images were taken at room temperature using immersion oil. For acquisition, Cell sense Entry software was used; the images were subsequently annotated using ImageJ.