Title: A bare megakaryocyte nucleus and myelocytes in bone marrow smear (human)
Description: Stain: May-Grünwald-Giemsa (MGG).
(1): Indicates a bare large-sized polyploid nucleus of a megakaryocyte which has totally shed the cytoplasm. These cells are often seen in normal marrow and are ultimately removed by macrophages. There is no cytoplasm left, nor platelets are left around the nucleus.
The eosinophilic myelocyte (2) contains slightly brown granules in an otherwise blue, basophilic cytoplasm; nucleoli are visible.
(3): Indicates two neutrophilic myelocytes with pale bluish cytoplasm and both primary and secondary granules.
Keywords/Mesh: blood, bone marrow, eosinophilic myelocyte, neutrophilic myelocyte, megakaryocyte, histology, POJA collection