Figure 5. (a) ⁹⁹Tc^m MDP bone scan showing focally increased uptake of tracer in the right ilium just above the supra-acetabular margin and the horizontal ramus of the mandible. (b) ⁹⁹Tc^m(V)DMSA whole body scan of the same patient demonstrating abnormal focal concentration in the right ilium corresponding to the lesion seen in the bone scan. There is another increased uptake at the right lateral end of the horizontal ramus of the mandible. (c) MRI of the pelvis (coronal short tau inversion recovery sequence) revealing a focal area of high signal intensity in the right ilium in the supraacetabular region. (d) Orthopantomogram showing evidence of right partial mandibulectomy with silastic implant in situ and patchy sclerosis with few lucent areas involving the horizontal ramus of the mandible adjacent to the irregular cut margins, highly suggestive of recurrent disease.