Preoperative embolization of primary bone tumors: A case control study

Figure 1 Preoperative embolisation of giant cell tumor of upper end of tibia. A-F: Antero-posterior (A) and lateral (B) plain radiographs of right knee show expansile lytic destructive lesion involving proximal end of right tibia reaching up to subarticular location suggestive of giant cell tumor; Axial (C) T2-weighted fat saturated magnetic resonance image show heterogeneously hyperintense lesion with blood-fluid levels within it suggestive of secondary aneurysmal bone cysts formation (arrow); Pre embolisation non-selective DSA (D) image of left SFA show multiple feeders arising from distal SFA and proximal anterior tibial artery supplying the tumor with marked tumor blush; Post embolisation non-selective DSA (E) image show > 90% reduction in tumor blush (arrow); Postoperative AP plain radiograph of right knee (F) show replacement of bony defect following tumor curettage with combined autograft (iliac crest) and allograft. DSA: Digital substraction angiography; SFA: Superficial femoral artery.