Table 3: CT findings by histologic subtype.

Mineralization Soft-tissue mass Exostosis   Present Peripheral Central Bimorphic Present Extracompartmental Cortical obliteration Necrosis Present Corticomedullary continuity Cartilage cap MFH-like subtype 6 6 2 6 7 7 7 2 2 1 1 OSA-like subtype 4 4 2 3 4 4 3 1 3 2 1 SCS-like subtype 2 2 2 2 2 2 1 0 1 0 1

Abbreviations: malignant fibrous histiocytoma (MFH); osteosarcoma (OSA); spindle-cell sarcoma (SCS).