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(A,C) Axial T1 MR images before contrast administration, (B,D) post contrast T1 weighted MR images at the same level as (A,C). The main area of osteolysis (A,B) is filled with non-enhancing soft-tissue. But there is vascular shaped contrast enhancement in the diploë in (D) at the edge of the osteolysis, this is the same area as mentioned in Figure 1B.
