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Nihon Ganka Gakkai Zasshi. 2008 Dec;112(12):1085-9.

[Case of inferonasal subconjunctival orbital fat herniation].

[Article in Japanese]

Author information

  • 1Department of Ophthalmology, Teikyo University of Medicine, 2-11-1 Kaga Itabashi-ku, Tokyo 173-8605, Japan. ynemoto@med.teikyo-u.ac.jp

Abstract

BACKGROUND:

We report a case with orbital fat herniation beneath the inferonasal conjunctiva, which is very rare in the literature.

CASE:

A 52-year-old non-obese female. The subconjunctival mass in the right eye that had formed spontaneously at a young age was yellow, soft, and easily retreated into the orbit with pressure. A magnetic resonance image showed that the intraconal orbital fat herniated through a space that was formed by the inferonasal sclera and the intermuscular septum between the medial rectus muscle and the inferior rectus muscle. Surgical resection obtained good results.

CONCLUSION:

This route of fat herniation in this case is similar to that of superotemporal lesions in previous reports. One possible explanation of the mechanism of such a rare lesion is congenital weakness in the inferonasal Tenon's capsule.

PMID:
19157029
[PubMed - indexed for MEDLINE]
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