Fig. 1A–B.

(A) This picture shows a pelvic chondrosarcoma radiograph with the Enneking and Durham classification of the pelvic resection zones. H = hip; S = sacrum; A = abductor muscles. (B) This is a postoperative radiograph of the same patient showing the Ice-Cream Cone prosthesis that was implanted after an internal hemipelvectomy in a patient with a chondrosarcoma located in the periacetabular area.