J Korean Ophthalmol Soc.  2001 Dec;42(12):1647-1654.

Classification and Treatment Efficacy of Orbital Pseudotumor

• Lee H
• Kim SJ
• Lee SY

Abstract

PURPOSE: This study was comprised of patients diagnosed with orbital pseudotumor classified according to the location and evaluated the clinical symptoms and treatment efficacy.
PATIENTS AND METHOD
This study included 24 patients diagnosed with orbital pseudotumor between 1994 and 1999. The pseudotumor was localized by computed tomography and magnetic resonance imaging and classified into anterior, diffuse, apical, myositic, and lacrimal. The patients were all initially treated with steroid and additional biopsies were done in 4 patients (5 eyes) who exhibited prolonged symptoms, non-steroid responders and cases of recurrence. Cases diagnosed as sclerosing orbital pseudotumor were excluded.
RESULTS
The response to treatment was high in the apical and diffuse types of orbital pseudotumor being 100% and 80% while the lacrimal and myositic types were 57.1% and 54.5%. The lacrimal type showed the highest recurrence rate of 42.9% followed by the myositic and anterior types being 25% and 20%.
CONCLUSION
This study is the first in our country to reveal the treatment efficacy of orbital pseudotumors according to location. The orbital pseudotumors were localized by computed tomography and magnetic resonance imaging and classified to compare treatment efficacy and recurrence rates between the different types providing a basis upon which further studies may eventually help in the treatment and prognosis of orbital pseudotumors.

Keyword

Steroid; Location; Orbital pseudotumor

MeSH Terms

Biopsy
Classification*
Humans
Magnetic Resonance Imaging
Orbit*
Orbital Pseudotumor*
Prognosis
Recurrence
Treatment Outcome*