A Case of Untreated Myeloid Sarcoma of the Pancreas Head Region: Diagnostic Process of AML Subtyping in an Autoptic Case

Figure 2

Increased (a, arrowheads) monocytes and neutrophils with degranulation/hypogranulation in which (b, arrows) MPO shows negative or weakly positive in peripheral blood ((a) May-Grünwald stain, (b) myeloperoxidase stain). Flow cytometry of the peripheral blood shows a few scattered blastoid cells with CD45/side scatter gating (c, arrow). (d) With forward versus slide scatter gating, (e) underexpression of CD11c and (f) aberrant expression of CD56 are shown for monocyte subset.

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