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Orbital cystic neurinoma.
1Department of Neurosurgery, Juntendo University Izunagaoka Hospital, Shizuoka, Japan.
Acta Neurochirurgica
|August 12, 2003
Summary
A rare orbital cystic neurinoma, originating from the frontal nerve, caused exophthalmos in a 64-year-old woman. Surgical removal was successful, highlighting this entity in orbital mass differential diagnoses.
Area of Science:
- Ophthalmology
- Neurosurgery
- Neuropathology
Background:
- Orbital tumors are rare, with cystic lesions presenting diagnostic challenges.
- Neurinomas, typically arising from peripheral nerves, are seldom found in the orbit.
Observation:
- A 64-year-old female presented with a 6-month history of right eye proptosis and forehead numbness.
- Neuroimaging revealed a cystic mass within the right orbit.
- Neurological examination showed no deficits beyond the proptosis and sensory changes.
Findings:
- The orbital cystic mass was surgically excised via a microsurgical transcranial approach.
- Histopathological examination confirmed the diagnosis of neurinoma.
- The tumor's origin was presumed to be the frontal nerve.
Implications:
- This case represents one of only three reported instances of orbital cystic neurinoma.
- Orbital cystic neurinoma should be considered in the differential diagnosis of cystic orbital masses.
- Successful surgical management underscores the importance of accurate diagnosis for rare orbital tumors.