Fig. 7From: Dedifferentiated soft tissue leiomyosarcoma with heterologous osteosarcoma component: case report and review of the literatureThe leiomyosarcoma component (on the right in a and b) is positive for alpha smooth muscle actin (a, 40×; inset 400×) and desmin (b, 100×), whereas the osteosarcoma component (on the left in a and b) is negative. SATB2 was positive in the nuclei of neoplastic cells in the osteosarcoma component (c, 400×) and negative in the leiomyosarcoma (d, 400×)Back to article page