Figure 4b. Storiform-pleomorphic malignant fibrous histiocytoma in a 68-year-old woman. (a) Nonenhanced CT scan at the level of the ascending aorta (A) shows a destructive mass with origins in the sternum and extension into the surrounding soft tissue (arrowheads). (b) Photograph of the dissected tumor reveals invasion of the subcutaneous tissue (arrowheads). R = rib.