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Postoperative progressive visual loss
Ethem Murat Arsava1, Bedile Irem Cikrikci, Gamze Mocan
1Department of Neurology, Hacettepe University, Ankara, Turkey.
Survey of Ophthalmology
|August 25, 2004
Summary
A man experienced vision loss after surgery for a brain tumor. Doctors found adenocarcinoma cells had spread to his optic nerves and chiasm, causing the visual impairment.
Area of Science:
- Neuro-oncology
- Ophthalmology
- Pathology
Background:
- Postoperative visual loss can occur after brain tumor resection.
- Ischemic optic neuropathy is a common cause of visual impairment, but lacked risk factors in this case.
Observation:
- A 61-year-old male presented with progressive bilateral vision loss post-parasagittal meningioma resection.
- Initial investigations, including routine imaging, did not identify abnormalities in the visual pathways.
- Cytological examination revealed mucin-positive adenocarcinoma cells.
Findings:
- Orbital magnetic resonance imaging (MRI) confirmed metastatic infiltration of the optic chiasm and optic nerves.
- The primary tumor site remained unidentified despite extensive investigation.
Implications:
- This case highlights a rare presentation of metastatic adenocarcinoma causing optic nerve infiltration and subsequent visual loss.
- It underscores the importance of considering metastatic disease in the differential diagnosis of unexplained visual deficits, even after oncological surgery.
- Further research is needed to elucidate the mechanisms of optic pathway metastasis from unknown primary sites.