XXXX : characteristics at CT and MR imaging.

@entity1 @entity2688 @entity2287 @entity121 @entity6735
PURPOSE: To establish imaging criteria for @entity6735 ( @entity6735 ). MATERIALS AND METHODS: Twenty-seven computed tomographic (CT) scans and 11 magnetic resonance (MR) images obtained in 32 @entity1 with @entity6735 were reviewed. Images in 10 @entity1 with @entity6735 and 16 with soft-tissue masses were evaluated blindly. RESULTS: At CT, all 27 @entity1 had @entity121 with heterogeneous attenuation; 26 @entity1 had a focal fluid collection, with rim enhancement in all 18 @entity1 who underwent contrast material-enhanced CT. Twenty-four @entity1 had @entity2688 . At MR imaging, all 11 @entity1 had both a subtle increase in signal intensity in the affected muscle(s) on T1-weighted images and @entity2688 . Nine @entity1 had a focal fluid collection, which had high signal intensity and a hypointense rim on T2-weighted images. In six @entity1 , a rim of increased signal intensity was seen around the collection on T1-weighted images. Six @entity2287 -enhanced examinations demonstrated rim enhancement. Eight @entity1 had fluid in the distal joint. All @entity1 with @entity6735 were correctly identified when evaluated with the control subjects; however, there were four false-positive results. CONCLUSION: CT and MR imaging can help characterize changes that are suspicious for @entity6735 .
