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CASE REPORT
Year : 2023  |  Volume : 3  |  Issue : 1  |  Page : 130-132

Trigeminal nerve sheath tumor presenting as trochlear nerve palsy


Department of Neuro-Ophthalmology, Aravind Eye Hospitals and Postgraduate Institute of Ophthalmology, Madurai, Tamil Nadu, India

Correspondence Address:
Madhavi Bijlani
Department of Neuro-Ophthalmology, Aravind Eye Hospitals and Postgraduate Institute of Ophthalmology, 1, Anna Nagar, Madurai - 625 020, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_2103_22

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A 73-year-old woman presented with vertical diplopia which was diagnosed as a trigeminal nerve sheath tumor. This case was unusual because the principal symptom was a vertical diplopia due to involvement of the trochlear nerve. Trigeminal function was preserved on initial presentation. The patient was advised neuroimaging along with baseline blood investigations. On subsequent follow-ups she developed trigeminal symptoms in the form of tingling and numbness along her left cheek and below her left eye. Eventually, radiodiagnosis showed a dumbbell-shaped necrotic lesion originating from the trigeminal nerve sheath suggestive of a schwannoma. The case was then referred to a neurosurgeon for appropriate management.


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