Figure 2: (a) H and E sections with × 40 magnification shows (a) spindle cell tumor with moderately pleomorphic cells and an occasional bizarre cell, (b) intersecting fascicles of spindle cells with mitotic figures. Immunohistochemistry study of the tissue specimen showed positive staining for (c) smooth muscle actin, (d) epithelial membrane antigen. Immunohistochemistry study of the tissue specimen showed negative staining for (e) cytokeratin. (f) S-100