RT Journal Article SR Electronic T1 Efficacy and Limitations of F-18-fluoro-2-deoxy-D-glucose Positron Emission Tomography to Differentiate Between Malignant and Benign Bone and Soft Tissue Tumors JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 4065 OP 4072 DO 10.21873/anticanres.12696 VO 38 IS 7 A1 SHINJI MIWA A1 TAKAFUMI MOCHIZUKI A1 NORIO YAMAMOTO A1 TOSHIHARU SHIRAI A1 KATSUHIRO HAYASHI A1 AKIHIKO TAKEUCHI A1 HIROYUKI INATANI A1 KENTARO IGARASHI A1 TAKASHI HIGUCHI A1 KENSAKU ABE A1 YUTA TANIGUCHI A1 HISAKI AIBA A1 HIROKO IKEDA A1 HIROYUKI TSUCHIYA YR 2018 UL http://ar.iiarjournals.org/content/38/7/4065.abstract AB Background/Aim: Positron emission tomography (PET) using 18fluorine-labelled fluorodeoxyglucose (FDG), is the most widely applied molecular imaging technique in oncology. The present study assessed the efficacy and limitations of FDG-PET by comparing FDG accumulation in bone and soft tissue lesions, as well as histopathological features. Patients and Methods: The study included 122 patients with 165 lesions, as assessed by histopathological examinations. The maximum standardized uptake values (SUVmax) of benign lesions were compared to those of primary, recurrent, or metastatic sarcomas, as well as those of other malignancies. Results: The sensitivity, specificity, and accuracy of SUVmax for differentiation between benign lesions and primary sarcomas were 67.9%, 92.9%, and 80.4%, respectively. There were no significant differences between benign lesions and recurrent or metastatic sarcomas. Conclusion: Although FDG-PET is a useful imaging modality to differentiate primary sarcomas from benign lesions, it is difficult to differentiate residual or metastatic sarcomas from benign lesions.