What is the subtle but important imaging finding?
Thickening and enhancement of the posterior sclera of the right eye globe.
What is the diagnosis?
Right posterior scleritis with surrounding cellulitis and minimal right optic perineuritis.
Uniform thickening and enhancement of the posterior sclera of the right eye globe, associated with moderate enhancement of the retrobulbar fat with minimal circumferential enhancement of the right optic nerve sheath. Findings are suggestive of right-sided posterior scleritis with minimal surrounding changes of focal cellulitis and optic perineuritis.
No choroidal effusions or signs of uveitis.
No intraconal or extraconal collections.
The left orbit is unremarkable.
Symmetrical size and pattern of enhancement of both lacrimal glands.