Trigeminal schwannoma

Case contributed by Ali Hekmatnia


Left proptosis and reduced vision

Patient Data

Age: 30 years
Gender: Female

There is gross left-sided proptosis with a large multiloculated cystic mass centered in the left cavernous sinus extending through the superior orbital fissure into the left intraconal space. It is predominantly fluid signal, with some hemorrhagic fluid-fluid levels. There is peripheral contrast enhancement. Mass effect on the cavernous segment of left ICA ​and left temporal lobe. The optic nerve is stretched around the medial aspect of the lesion.

Case Discussion

The patient underwent surgery and the well-circumscribed mass was successfully removed. The optic, oculomotor, trochlear and abducens nerves were normal. Histopathology confirmed a benign schwannoma. In our case, the tumor was a trigeminal schwannoma affecting the first division of the trigeminal nerve (ophthalmic division).

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