(a)
(b)
(c)
Figure 1: (a) CT showing left periorbital myeloid sarcoma (arrowed); (b) periorbital biopsy showing blast infiltration by myeloid sarcoma (Hematoxylin and Eosin; magnification ×40); (c) positive immunohistochemical staining for CD34 in the myeloid sarcoma (magnification ×40).