Orbital Schwannoma With Atypical Presentation

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Abstract

Orbital schwannomas are characteristically slow-growing benign tumors arising from peripheral sensory nerves. However, the authors’ case illustrates the atypical presentation of such a tumor.

A 71-year-old male presented with proptosis, visual loss, and periorbital inflammation. Sequential imaging showed continuous and rapid growth of an intraconal mass arising from the medial rectus. Excision of the mass was performed and it was histopathologically proven to be an orbital schwannoma.

This patient demonstrates the atypical presentation of an orbital schwannoma, arising from an extraocular muscle with rapid progressive growth and inflammation, indicating it should be considered a differential diagnosis in orbital masses presenting as such.

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