Primary Rosai-Dorfman Disease of Bone: A Report of Two Cases

Figure 3

Sagittal T1, T2 fat-suppressed, and sagittal and axial T1 fat-suppressed postcontrast images of the left forearm demonstrate a T1 isointense, T2 hyperintense, avidly enhancing lesion (arrows). The axial postcontrast image demonstrates the extent of the cortical thinning with focal areas of cortical breakthrough. There is no surrounding edema or abnormal soft tissue enhancement.