Orbital Solitary Fibrous Tumor: Four Case Reports—Clinical and Histopathological Features

Figure 6

Case 1. (a, b) Microscopic appearance of the tumor, composed of a proliferation of spindle cells arranged in an irregular manner with a focal storiform pattern, bland cytology, and vascular proliferation with a hemangiopericytoma-like growth pattern (arrow in (b)). (H&E, ×40 and ×100 magnification.) Positivity of the tumor for (c) BCL2 and (d) CD34. (Bar is indicated in μm, down and to the right).

(a)

(b)

(c)

(d)