Orbital Leiomyoma: A Case Report.

Kim, Jongshin; Kim, Nam Ju

doi:2009.50.2.294

J Korean Ophthalmol Soc > Volume 50(2); 2009 > Article

Case Report

Journal of the Korean Ophthalmological Society 2009;50(2):294-298.
DOI: https://doi.org/10.3341/jkos.2009.50.2.294 Published online February 15, 2009.

Orbital Leiomyoma: A Case Report.

Jongshin Kim, Nam Ju Kim

¹Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea. resourceful@hanmail.net
²Department of Ophthalmology, Seoul National University Bundang Hospital, Gyeonggi, Korea.

안와 평활근종 1예

김종신¹ㆍ김남주^1,2

Department of Ophthalmology, Seoul National University College of Medicine¹, Seoul, Korea / Department of Ophthalmology, Seoul National University Bundang Hospital², Gyeonggi, Korea

Abstract

PURPOSE
To report a case of orbital leiomyoma presenting with proptosis. CASE SUMMARY: A 69-year-old woman presented with a 3-month history of proptosis in her left eye. Intraocular pressure was 17 mmHg in her right eye and 23 mmHg in her left eye. There was a left hypotropia on upgaze. A fundus examination showed retinal folds in the superotemporal area in her left eye. Computed tomography revealed a 2.6 cm-sized well-defined enhancing solid mass in the superotemporal extraconal space of the left orbit, pushing her left eye forward. Lateral orbitotomy, tumor removal, and biopsy were performed. Pathological findings showed a fascicular pattern of benign spindle cells with mild cellular pleomorphism and hyaline degeneration, without mitotic figures. Immunohistochemical stain was positive with smooth muscle actin (SMA), which was compatible with orbital leiomyoma. CONCLUSIONS: Orbital leiomyoma is rare, but it should be considered as a differential diagnosis of orbital tumor when the presenting symptom is proptosis and limitation of ocular movement.

Key Words: Orbital leiomyoma;Orbital tumor;Proptosis