... Radiology, Faculty of Medicine, Chiang MaiUniversity, Suthep Road, Chiang Mai TH-50200, Thailand.3Department of Pathology, Faculty of Medicine, Chiang-Mai University, Suthep Road, ChiangMai TH-50200, ... finding of a low-grade osteosarcoma simi-lartotheprimarylesionwitha50%necroticareaasaresult of neoadjuvant chemotherapy, and the surgical mar-gin was free from tumor. Seven years later the patient ... metaphysis. The tumor showed hypointensity on T1-weighted images and mixed signal intensity on T2-weighted images with inva-sion into the surrounding soft tissue. Diffuse corticalthicken ing of the...