Tocilizumab Controls Paraneoplastic Inflammatory Syndrome but Does Not Suppress Tumor Growth of Angiomatoid Fibrous Histiocytoma

Figure 2

Photomicrographs of the angiomatoid fibrous histiocytoma. (a) Local recurrence featuring solid nodules of epithelioid to spindle cells arranged in a syncytial pattern with peripheral blood cells (hematoxylin and eosin (HE) stain, ×200). Tumor cells negative for (b) S-100 protein, (c) smooth muscle actin, (d) CD31, and (e) STAT6 (immunohistochemical stains, ×200). (f) Excisional biopsy revealing inguinal node metastasis of the tumor (HE, ×20).

(a)

(b)

(c)

(d)

(e)

(f)