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Rapid Visual Deterioration Caused by Posterior Fossa Arachnoid Cyst
Chang Jin Shin1, Myeongho Rho2, Yu Sam Won1
1Department of Neurosurgery, Sungkyunkwan University, School of Medicine, Kangbuk Samsung Hospital, Seoul, Korea.
Journal of Korean Neurosurgical Society
|May 27, 2016
Summary
Posterior fossa arachnoid cysts can cause serious visual loss if not treated promptly. This case highlights the rapid progression of symptoms, emphasizing the need for timely surgical intervention for symptomatic cysts.
Area of Science:
- Neurosurgery
- Neurology
Background:
- Arachnoid cysts are benign lesions often found incidentally.
- Posterior fossa arachnoid cysts can cause mass effects on the cerebellum, leading to symptoms like headaches and ataxia.
Observation:
- A patient presented with visual symptoms and headache, but without gait disturbance or ataxia, due to a posterior fossa arachnoid cyst.
- The patient initially refused recommended emergency decompression surgery.
Findings:
- After seven days, the patient developed near-blindness, suspected to be caused by hydrocephalus and optic nerve compression from the cyst.
- Rapid visual deterioration occurred despite delayed surgical intervention.
Implications:
- Symptomatic arachnoid cysts require prompt treatment due to the unpredictable and rapid potential for symptom aggravation.
- This case underscores the critical importance of timely surgical decompression for posterior fossa arachnoid cysts to prevent irreversible vision damage.
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