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Journal of Shanghai Jiaotong University(Medical Science) ; (6)2006.
Article Dans Chinois | WPRIM | ID: wpr-640656

Résumé

Objective To analyze the value of MRI in the diagnosis of giant cell tumor of tendon sheath(GCTTS). MethodsThe MR images of 21 GCTTS cases including 3 cases of recurrences were retrospectively evaluated.All were confirmed giant cell tumor of tendon sheath by surgery and pathology.All the patiens were examined by MRI,and 19 received contrast enhanced MRI.The characteristics of MRI presentations were explored.Results Of the 21 cases,17 were in diffuse form and 4 in localized form.On T1WI,the signal intensities of the giant cell tumor of tendon sheath almost equalled to those of skeletal muscle in 18 cases and were slightly lower than those of skeletal muscle in 3 cases.On T2WI,the signal intensities tended to range between those of skeletal muscle and fat in 7 cases,almost equalled to those of skeletal muscle in 12 cases,and were slightly lower than those of skeletal muscle in 2 cases.Of the 19 cases with gadolinium-enhanced images,17 showed inhomogeneous enhancement and 2 homogeneous enhancement,and all were observed with a fat suppression sequence on T1WI. Conclusion MRI is able to depict the characteristic internal signal of giant cell tumor of tendon sheath,which is a valuable for diagnosis,treatment and follow-up.

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