Orbital apex cyst: a rare cause of compressive optic neuropathy post-functional endoscopic sinus surgery

Yi, Ni Koh and Shu, Fen Ho and Pathma, Letchumanan and Singh, Harvinder and Embong, Zunaina (2017) Orbital apex cyst: a rare cause of compressive optic neuropathy post-functional endoscopic sinus surgery. International Medical Case Reports Journal, 10. pp. 263-269. ISSN 1179-142X

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Abstract

There are various causes that can lead to compressive optic neuropathy. We present here orbital apex cyst as an unusual cause of compressive optic neuropathy in a 49-year-old male. He presented with 2 weeks painless loss of vision in the left eye with left-sided headache. He had had left functional endoscopic sinus surgery for left nasal polyps 4 years earlier. Magnetic resonance imaging of brain and orbit revealed a left discrete orbital nodule, possibly orbital cyst or mucocele, which was compressing on the left optic nerve. Left eye vision improved markedly from hand movement to 6/36 pinhole 6/18 after initiation of intravenous dexamethasone. A subsequent endoscopic endonasal left optic nerve decompression found the orbital nodule lesion to be an orbital cyst. Marsupialization was performed instead of excision, as the cyst ruptured intraoperatively. Postoperative vision improved to 6/7.5 with normal optic nerve function postoperatively. Possible cause of orbital apex cyst is discussed.

Item Type:	Article
Subjects:	R Medicine > RE Ophthalmology R Medicine > RF Otorhinolaryngology
Divisions:	Kampus Kesihatan (Health Campus) > Pusat Pengajian Sains Perubatan (School of Medical Sciences) > Article
Depositing User:	Mr Noorazilan Noordin
Date Deposited:	13 Oct 2017 02:54
Last Modified:	13 Oct 2017 02:54
URI:	http://eprints.usm.my/id/eprint/37101

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