Fig. 2 A-F.

Secondary chondrosarcoma arising on an exostoses from the anterior column. This patient underwent attempted debulking before presenting to us. (A) Radiograph and (B-C) CT scans showing the tumor arising purely from the left anterior column. He was treated with ECRT and reimplantation of the anterior column. A plate was used to buttress the graft as seen on the (D) followup radiograph after 2 years showing the healed graft. (E) Local recurrence seen in the parasacral area (white arrow) was excised completely. (F) Local recurrence in the pelvic wall (white arrow) too was completely excised. The recurrences were probably from the extensive contamination caused by the prior debulking.