Title: Monocyte in peripheral blood smear (human)
Description: Stain: May-Grünwald-Giemsa (MGG).
The monocyte (12-20 mm) contains a large light-stained nucleus with a characteristic indentation with a distinct nucleolus in an light blue-stained apparently transparent cytoplasm. Small primary or azurophilic granules are hardly visible.
Background: The monocytes (2-8%) of the total leukocyte population are the largest leukocytes (12-20 mm). They travel briefly in the bloodstream (20 hours) and enter thereafter in peripheral tissues as macrophages. They can transform as well into antigen-presenting cells (APC’s).
Keywords/Mesh: blood, bone marrow, monocyte, azurophilic granule, primary granule, histology, POJA collection