Well-Circumscribed Intramuscular Lipoma of Superior Rectus Muscle
Issued Date
2023-01-01
Resource Type
eISSN
1179142X
Scopus ID
2-s2.0-85152422402
Journal Title
International Medical Case Reports Journal
Volume
16
Start Page
215
End Page
219
Rights Holder(s)
SCOPUS
Bibliographic Citation
International Medical Case Reports Journal Vol.16 (2023) , 215-219
Suggested Citation
Tangtammaruk P., Uiprasertkul M., Lumyongsatien M. Well-Circumscribed Intramuscular Lipoma of Superior Rectus Muscle. International Medical Case Reports Journal Vol.16 (2023) , 215-219. 219. doi:10.2147/IMCRJ.S396382 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/82515
Title
Well-Circumscribed Intramuscular Lipoma of Superior Rectus Muscle
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
Extraocular muscle lipoma is a rare benign mesenchymal tumor of the orbit. We report a case of a 37-year-old woman who presented with chronic progressive proptosis and inferior globe displacement of left eye. External eye examination revealed a yellowish mass at the superior bulbar conjunctiva. Magnetic resonance imaging showed a well-circumscribed mass confined in the superior rectus muscle belly and tendon with a fat signal. Debulking surgery was performed using the transconjunctival and vertical lid split approach. A pathological study demonstrated matured adipose tissue cells encapsulated by a thin layer of fibrous tissue, in addition to the chronic non-specific inflammation of the tenon capsule tissue sample. Histopathological findings of the mass were consistent with a well-circumscribed intramuscular lipoma. The symptoms of the patient were significantly improved 3 months after surgical and short-course systemic steroid treatments. However, long-term surveillance is needed.