Fig. 2

a. The tumor had abundant myxoid stroma and a multinodular architecture at low-magnification (a: magnification × 20 and b: magnification ×100). b & c & d The tumor showed variable cellularity with polygonal, stellate to chondrocyte-like or physaliferous-like tumor cells organized in prominent reticular network of delicate lace-like cellular strands and cords within prominent myxoid stroma (b & c magnification × 100, d: magnification × 400). e. Abundant lymphoid cells and plasma cells at the periphery or within the tumor (magnification × 400) f. Tumor cell immunohistochemical positive expression of vimentin (magnification × 400). g. Tumor cell immunohistochemical positive expression of EMA (magnification × 400). h. Tumor cell immunohistochemical negative expression of Desmin (magnification × 200). i. Tumor cell immunohistochemical negative expression of ALK (magnification × 400). j. Tumor cell immunohistochemical negative expression of S-100 (magnification × 400)