Osteosarcomatous Divergence in Dedifferentiated Liposarcoma Presenting as a Colonic Mass

Figure 2

(a) A low power image showing dedifferentiated liposarcoma with osseous differentiation involving the colonic wall (20X). (b) Dedifferentiated liposarcoma with osseous differentiation adjacent to well-differentiated liposarcoma (left) (20X). (c) Dedifferentiated liposarcoma with osseous differentiation and highly atypical cells (40X). (d) Areas of low-grade osteogenic differentiation with well-formed bone trabeculae and intervening spindle cells (40X). The insert shows high power image of the spindle cells with mild atypia (100X).

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