Radiological presentation of a conventional low-grade chondrosarcoma

(A) Atypical cartilaginous tumor in the proximal humerus with chondroid mineralization on conventional radiograph.
(B) Discrete endosteal scalloping of the anterior cortex is seen on the T1-weighted magnetic resonance image.
(C) Axial T1-weighted magnetic resonance image with fat suppression after IV contrast injection demonstrates the typical peripheral ring-and-arc pattern of enhancement. No soft tissue extension is noted.