1. Small lymphaticovenous malformation of the orbital apex clinicopathologic correlation
- Author
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Mark Hankins, Ryan Murtagh, Curtis E. Margo, Jasmina Bajric, Siviero Agazzi, Patrick J. Malafronte, and Mitch Drucker
- Subjects
Ophthalmology ,RE1-994 - Abstract
Purpose: To familiarize clinicians with the clinical and magnetic resonance imaging (MRI) features of a small orbital apex lymphaticovenous malformation that resulted in blindness and evaded timely clinical diagnosis. Observations: A 68-year-old man presented with severe vision loss due to a 9 mm mass at the apex of the orbit above the optic nerve. When surgically removed 4 years later, the lesion was characterized by vascular spaces of varying size. Larger ones were filled with fibrin and organized thrombi. Stromal septa of endothelial-lined cavernous spaces were partially necrotic and there was evidence of remote hemorrhage. Some endothelial cells expressed D2-40, a marker of lymphatic channels. Conclusions and importance: Unless a high index of suspicion is maintained for a lymphaticovenous malformation the clinical diagnosis of a small but vision-threatening lesion can be overlooked.
- Published
- 2019
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