PURPOSE: To differentiate between benign and malignant cartilaginous tumors with fast contrast material-enhanced magnetic resonance (MR) imaging. MATERIALS AND METHODS: In 37 patients, fast contrast-enhanced MR images were obtained in eight enchondromas, 11 osteochondromas, and 18 chondrosarcomas. Start of enhancement-early, within 10 seconds after arterial enhancement; delayed, between 10 seconds and 2 minutes; late, after 5 minutes on spin-echo images-and progression of enhancement were represented with three types of time-signal intensity curves. Findings were correlated with the surgical specimen in 27 cases, curettage material in three cases, and biopsy combined with long-term follow-up findings in seven cases. RESULTS: Start of enhancement and the combination of start and progression of enhancement correlated significantly (P <.001) with benign and malignant tumors. Early enhancement was seen in chondrosarcoma, not seen in enchondroma, and seen in osteochondroma only when growth plates were unfused. The sensitivity was 89%, specificity 84%, positive predictive value 84%, and negative predictive value 89%. Differentiation of malignancy from benignity on the basis of early and exponential enhancement was possible with a sensitivity of 61%, specificity 95%, positive predictive value 92%, and negative predictive value 72%. CONCLUSION: Preliminary results show that in the adult population fast contrast-enhanced MR imaging may assist in differentiation between benign and malignant cartilaginous tumors.
PURPOSE: To differentiate between benign and malignant cartilaginous tumors with fast contrast material-enhanced magnetic resonance (MR) imaging. MATERIALS AND METHODS: In 37 patients, fast contrast-enhanced MR images were obtained in eight enchondromas, 11 osteochondromas, and 18 chondrosarcomas. Start of enhancement-early, within 10 seconds after arterial enhancement; delayed, between 10 seconds and 2 minutes; late, after 5 minutes on spin-echo images-and progression of enhancement were represented with three types of time-signal intensity curves. Findings were correlated with the surgical specimen in 27 cases, curettage material in three cases, and biopsy combined with long-term follow-up findings in seven cases. RESULTS: Start of enhancement and the combination of start and progression of enhancement correlated significantly (P <.001) with benign and malignant tumors. Early enhancement was seen in chondrosarcoma, not seen in enchondroma, and seen in osteochondroma only when growth plates were unfused. The sensitivity was 89%, specificity 84%, positive predictive value 84%, and negative predictive value 89%. Differentiation of malignancy from benignity on the basis of early and exponential enhancement was possible with a sensitivity of 61%, specificity 95%, positive predictive value 92%, and negative predictive value 72%. CONCLUSION: Preliminary results show that in the adult population fast contrast-enhanced MR imaging may assist in differentiation between benign and malignant cartilaginous tumors.
Authors: Suzan H M Verdegaal; Judith V M G Bovée; Twinkal C Pansuriya; Robert J Grimer; Harzem Ozger; Paul C Jutte; Mikel San Julian; David J Biau; Ingrid C M van der Geest; Andreas Leithner; Arne Streitbürger; Frank M Klenke; Francois G Gouin; Domenico A Campanacci; Perrine Marec-Berard; Pancras C W Hogendoorn; Ronald Brand; Antonie H M Taminiau Journal: Oncologist Date: 2011-12-06
Authors: Gaurav Luther; Richard Rames; Eric R Wagner; Gaohui Zhu; Qing Luo; Yang Bi; Stephanie H Kim; Jian-Li Gao; Enyi Huang; Ke Yang; Linyuan Wang; Xing Liu; Mi Li; Ning Hu; Yuxi Su; Xiaoji Luo; Liang Chen; Jinyong Luo; Rex C Haydon; Hue H Luu; Lan Zhou; Tong-Chuan He Journal: Trends Cancer Res Date: 2010
Authors: Richard F Riedel; Nicole Larrier; Leslie Dodd; David Kirsch; Salutario Martinez; Brian E Brigman Journal: Curr Treat Options Oncol Date: 2009-02-24
Authors: Liesbeth Hameetman; Petra Kok; Paul H C Eilers; Anne-Marie Cleton-Jansen; Pancras C W Hogendoorn; Judith V M G Bovée Journal: Virchows Arch Date: 2005-03-03 Impact factor: 4.064