Granulocytic Sarcoma by AML M4eo (inv16) after Allogeneic Stem Cell Transplantation without Bone Marrow Involvement

Figure 1

Immunohistology of granulocytic sarcoma. Tumor formation by monomorphic blast cells ((a), HE-stain). Significant proportions of the blast cells were positive for myeloperoxidase (b) and the monocyte marker CD68 (c).

(a)

(b)

(c)