Article Figures & Data
Figures
- Fig 1.
Coronal postcontrast T1-weighted image of the orbits in patient 1 demonstrates a heterogeneously enhancing ovoid lesion involving the right medial rectus (arrow). A similarly enhancing but larger lobulated lesion involves the left lateral rectus (arrowhead).
- Fig 2.
Coronal reformat contrast-enhanced CT image of the orbits in patient 2 demonstrates a homogeneously enhancing well-circumscribed rounded mass within the left lateral rectus (arrow).
- Fig 3.
A, Coronal fat-saturated T2-weighted image of the orbits in patient 5 demonstrates a heterogeneously hyperintense well-circumscribed masses involving the right lateral (arrow) and left inferior recti (arrowhead). B, Axial fat-saturated T1-weighted postgadolinium image in this same patient demonstrates heterogeneous hypoenhancement of the fusiform masses of the right lateral (arrow) and left inferior recti (arrowhead).
- Fig 4.
Axial contrast-enhanced CT image of the orbits in patient 6 shows ovoid well-defined lesions of the right medial (black arrow) and lateral (white arrow) recti.
Tables
Demographic, clinical, and imaging findings for the patient cohort
Patient No. Age (yr) Sex Clinical Presentation CT or MRI Available EOMs Involved Lesion Morphology Lesion Margins Involvement of Insertion of EOM on Globe Density/Intensity on Postcontrast Relative to Normal EOM 1 64 F Proptosis and CN VI palsy MRI Rt. MR Fusiform Well-defined No Mildly hyperintense Lt. LR 2 42 F Gaze difficulty and tearing CT Lt. LR Fusiform Well-defined No Moderately hyperdense 3 71 F N/A MRI Rt. SO Round Well-defined No Mildly hypointense 4 71 F N/A MRI Rt. LR, MR, SO, Lt. LR and IR Round and fusiform Well-defined No Mildly hypointense 5 62 F Proptosis and pain MRI Rt. LR Round Well-defined No Moderately hypointense Lt. IR 6 53 F Proptosis and gaze difficulty CT Rt. LR, SR, MR Round and fusiform Well-defined No Mildly hyperdense Lt. LR 7 70 M Blurry vision MRI Rt. IR Fusiform Well-defined No Isointense Lt. IO
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