MRI
Sagittal T1
Axial FLAIR
Coronal T2
Axial T2
Axial T2 fat sat
Axial T1 fat sat
Axial T1 C+ fat sat
Coronal T1 C+ fat sat
Coronal T2 fat sat
The MRI sequences demonstrate left proptosis grade I with infiltration of the retrobulbar intraconal fat of intermediate signal intensity on T1WI, low signal intensity, T2WI, and FLAIR, relatively high signal intensity on T2 fat sat sequences. The postcontrast sequences show moderate enhancement as well as an enhancement of the ipsilateral optic nerve sheath. The lateral/superior rectus muscles, as well as the lacrimal gland, are enlarged with homogeneous enhancement.