Presentation
Painful left periorbital swelling with binocular diplopia.
Patient Data
Soft-tissue thickening with enhancement anterior to the left orbital septum with no abscess formation in keeping with a preseptal periorbital cellulitis.
Thickening of the left lateral rectus muscle of high signal on T2 and T2 fat sat with enhancement in keeping with myositis.
Normal size and signal intensity of the other extraocular orbital muscles and optic nerves.
Mild peripheral mucosal thickening of the maxillary sinuses.
Case Discussion
MRI features of a preseptal orbital cellulitis with myositis of the lateral rectus muscle confirmed as herpes zoster ophthalmicus.