A Rare Case of Uterine Leiomyosarcoma with Metastasis to the Thyroid Gland

Figure 3

Immunohistochemical stains for (a) cytokeratin AE1/AE3 and (b) thyroglobulin showing entrapped thyroid follicles within fascicles of spindle tumor cells positive for (c) smooth muscle actin (SMA) and (d) desmin.