J Korean Ophthalmol Soc.  1991 Jun;32(6):482-488.

Effect of Corticosteroid on Orbital Pseudotumor Caused by Orbital Myositis

Affiliations
  • 1Department of Ophthalmology, College of Medicine, Gyeong-Sang National University, Chinju, Korea.

Abstract

Idiopathic orbital myositis, a subgroup of inflammatory orbital pseudotumor may occur with acute-onset periorbital pain, diplopia, and, in most cases, eyelid swelling. Proptosis, extraocular muscle motility restrictions, and response to oral prednisolone administration were characteristic. Although the CT appearance of orbital myositis is often helpful, the findings are not pathognomonic: correlation with history, clinical finding, and therapeutic response must be considered in making the diagnosis. The results of corticosteroid therapy on the orbital pseudotumor caused by orbital myositis were as follows: 1. The effect of corticosteroid was more effective in single extraocular muscle involvement than in that of a multiple extraocular muscle. 2. Early age of onset and early treatment after symptom increased the effectiveness of corticosteroid therapy.

Keyword

Orbital myositis; Pseudotumor; Corticosteroid

MeSH Terms

Age of Onset
Diagnosis
Diplopia
Exophthalmos
Eyelids
Orbit*
Orbital Myositis*
Orbital Pseudotumor*
Prednisolone
Prednisolone
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