Tag: Acute lymphocytic leukemia block pas positivity
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Periodic acid schiff (PAS) staining patterns in hematopoietic cells
Different hematopoetic cells stain differently with PAS stain. Let’s look at various PAS staining patterns in hematopoietic cells. 1. MYELOID PRECURSORS AND NEUTROPHILSMyeloid precursors show diffuse PAS positivityNeutrophils show intense granular positivity 2.MONOCYTES AND THEIR PRECURSORSMonocytes and their precursors show variable diffuse positivity. 3.ERYTHROID PRECURSORS AND RED BLOOD CELLS (RBCs)Red blood cells are PAS negativeErythroblasts […]