Title: Mott cell in peripheral blood smear (human)
Description: Stain: May-Grünwald-Giemsa (MGG).
Plasma cells that contain abundant globular inclusions or vacuoles (Russell bodies) composed of immunoglobulin are called “Mott cells” (1) “morular cells” or “grape cells”. Russell bodies can stain blue-violet or pink but may also be dissolved during fixation and staining. In that case, the plasma cell is more or less filled with colorless vacuoles.
(2): A plasmacytoid lymphocyte or activated and transforming B cell.
Keywords/Mesh: blood, bone marrow, plasma cell, Mott cell, grape cell, Russell body, histology, POJA collection