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Clinical and imaging findings in six patients with solitary fibrous tumor of the orbit
Patient No./Age/Sex Chief Complaint CT Scan/ Dual-Phase CT MR Image Location Size* (mm) Margin Density on Precontrast CT Scan† Signal Intensity on MR Imaging† Enhancement Pattern/Degree T1WI T2WI 1/26 y/M Periocular mass for 10 months Yes/No No Lacrimal sac 30 Well-defined - - - Heterogeneous/marked 2/50 y/F Proptosis for 8 months Yes/Yes Yes Postseptal extraconal 30 Well-defined Slightly hyperdense Isointense Mixed isointense and hyperintense Homogeneous/marked 3/51 y/F Periocular mass for 6 months Yes/Yes No Lacrimal sac 18 Well-defined Isodense - - Homogeneous/marked 4/18 y/F Proptosis for 2 y Yes/No Yes Postseptal extraconal 30 Well-defined Isodense Isointense Mixed isointense and hyperintense Heterogeneous/marked 5/24 y/F Proptosis for 1 y Yes/No Yes Postseptal intraconal 18 Well-defined Slightly hyperdense Isointense Mixed isointense and hyperintense Homogeneous/marked 6/40 y/M Periocular mass for 6 months Yes/Yes No Lower eyelid 20 Well-defined Isodense - - Homogeneous/marked
Note:—T1WI indicates T1-weighted image; T2WI, T2-weighted image.
* Size was denoted as greatest diameter.
† Density and signal intensity of the tumor were compared with those of the cerebral gray matter.