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Published on: August 11, 2015
Middle cranial fossa arachnoid cysts: not always a benign entity
M P Callaway1, S A Renowden, T T Lewis
1Department of Neuroradiology, Frenchay Hospital, Bristol, Avon, UK.
The British Journal of Radiology
|July 11, 1998
Summary
Arachnoid cysts are typically incidental findings. This case highlights a rare instance of a child with acute symptoms of raised intracranial pressure due to an arachnoid cyst.
Area of Science:
- Neurology
- Pediatric Neurosurgery
Background:
- Arachnoid cysts are benign, fluid-filled sacs within the arachnoid mater.
- They are commonly asymptomatic and found incidentally on neuroimaging.
- Symptomatic presentations are less frequent, particularly in pediatric populations.
Observation:
- A child presented with acute neurological deterioration.
- Clinical signs and symptoms indicated significantly raised intracranial pressure.
- Cranial imaging revealed an arachnoid cyst as the underlying cause.
Findings:
- The arachnoid cyst was identified as the source of mass effect.
- Acute hydrocephalus and neurological compromise were directly attributed to the cyst.
- This represents a rare, acute presentation of a typically incidental finding.
Implications:
- This case underscores the importance of considering arachnoid cysts in the differential diagnosis of acute raised intracranial pressure in children.
- Prompt diagnosis and management are crucial to prevent irreversible neurological damage.
- Further research into the pathophysiology of symptomatic arachnoid cysts may be warranted.
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