Radiological presentation of a high-grade pelvic chondrosarcoma

(A) Axial T1-weighted magnetic resonance image of high-grade chondrosarcoma arising from the pelvis with cortex destruction and a large soft tissue component.
(B) Axial T1-weighted magnetic resonance image with fat suppression after IV contrast injection shows areas of solid peripheral enhancement.
(C) Computed tomography image demonstrates the bone destruction of the right os ilium and os sacrum with a large soft tissue mass with only peripheral mineralization.