Classification and Treatment Efficacy of Orbital Pseudotumor.

Lee, Hyo; Kim, Sung Joo; Lee, Sang Yeul

Original Article

Journal of the Korean Ophthalmological Society 2001;42(12):1647-1654.
Published online December 1, 2001.

Classification and Treatment Efficacy of Orbital Pseudotumor.

Hyo Lee, Sung Joo Kim, Sang Yeul Lee

Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea. sylee@yumc.yonsei.ac.kr

안와 위종양의 분류 및 병변의 위치에 따른 치료 효과

이효(Hyo Lee),김성주(Sung Joo Kim),이상렬(Sang Yeul Lee)

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.

Key Words: Steroid;Location;Orbital pseudotumor