Article Text
Matters arising
A case of orbital myositis associated with rheumatoid arthritis
Statistics from Altmetric.com
In the October 2002 issue of the Annals Nabili and colleagues described a case of orbital myositis (OM) associated with rheumatoid arthritis and suggested that the major differential diagnosis was thyroid ophthalmopathy.1
The mechanical component of orbital involvement in Graves’ disease (GD) can produce diplopia (5–10%), proptosis, chemosis, scleral injections, and retrobulbar pressure or pain, whereas eyelid lag or retraction and stare are caused by the spastic component (in some cases lid retraction can be obscured by periorbital oedema). The extraocular muscles most commonly affected are the medial and inferior rectus muscles.
The authors suggested …