Systemic Lupus Erythematosus Presenting with Idiopathic Retroperitoneal Fibrosis

177 Copyrightc 2016 The Korean Association of Internal Medicine This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Received: 2015. 8. 24 Revised: 2015. 9. 10 Accepted: 2015. 9. 16