Table 1.

Plain radiograph findings by histologic subtype.

	Mineralization				Soft-tissue mass			Exostosis		Tumor luminance
	Present	<50%	>50%	Bimorphic	Present	Extracompartmental	Cortical obliteration	Present	Corticomedullary continuity
MFH-like subtype	9	2	7	4	10	10	8	7	1	103.9
OSA-like subtype	5	3	2	3	5	5	4	3	2	90.4
SCS-like subtype	2	1	1	1	2	2	1	1	0	67.6

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