Imaging Review of Skeletal Tumors of the Pelvis Malignant Tumors and Tumor Mimics

Figure 10

Post-radiation sarcoma. A 78-year-old female presenting with left upper thigh and hip pain. The patient had received radiotherapy to the pelvis 32 years previously, for an ovarian malignancy, and was later diagnosed with radiation-induced sarcoma. Axial contrast-enhanced CT identifies a large, heterogeneously enhancing mass along the inner surface of the left ilium (asterisk) with local bone destruction of the inner cortex.