http://cogprints.org/9147/ Sacral Chordoma and Single Stage Combined Anteroposterior High Sacrectomy Chordomas are locally aggressive tumors, most commonly seen in sacrum. We present a case of sacral chordoma who presented with urinary retention and treated with single stage combined anteroposterior high sacrectomy Challa, VR Krishnamurthy, S Goud, BYG Online Journal of Health and Allied Sciences VR Challa S Krishnamurthy BYG Goud