Cortical Bone Remodeling in Parosteal Osteosarcoma Mimicking Medullary Involvement: A Case with the Difficulty in Pre-Surgical Staging

165 Received February 27, 2014; revised and accepted May 28, 2014. Published online June 26, 2014; doi: 10.1620/tjem.233.165. Correspondence: Yasuhiro Yamamoto, Department of Orthopaedic Surgery, School of Medicine, Fujita Health University, 1-98 Dengakugakubo, Kutsukake-cho, Toyoake, Aichi 470-1192, Japan. e-mail: yyasuhiro88jp@yahoo.co.jp Cortical Bone Remodeling in Parosteal Osteosarcoma Mimicking Medullary Involvement: A Case with the Difficulty in Pre-Surgical Staging