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| Analysis of MR manifestation and differential diagnosis in chordoma of the skull base |
| YANG Hai-tao, WANG Ren-fa, GAO Xiao-ling, CHENG Juan-juan, XIA Li-ming, WANG Cheng-yuan |
| Department of Radiology, Tongji Hospital, Tongji Medical College,Huazhong University of Science and Technology, Wuhan 430030, China |
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Abstract Objective: To analyse the MR manifestations in chordoma of the skull base, evaluate the value of diagnosis and differential diagnosis with MRI in basicranial chordoma. Methods: MRI findings in 16 patients with pathologically-proved basicranial chordoma were analyzed retrospectively. Results: In 16 cases of chordomas, 9 tumors located in clivus, 7 tumors involved intrasellar, parasellar, sphenoidal sinus, and nasopharynx, 1 involved posterior cranial fossa simultaneously. Tumors displayed inhomogenous hypo/isointense T1 signal soft tissue tumors, in T2WI 9 showed isointense or slightly long T2 signal, 7 showed extremely long T2 signal. Contrast enhancement displayed 10 cases had inhomogenous enhancement and 5 cases had markedly enhancement. Conclusion: MRI can well display the location, shape, infiltrating scope of the basicranial chordoma and anatomic relationship with adjacent tissue, basicranial chordomas have certain specific MR features, MRI has higher value in diagnosis and differential diagnosis of basicranial chordoma.
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Received: 21 July 2007
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2007, Vol. 18 
