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Pseudoepiphora from cerebrospinal fluid leak: case report
Insights
A persistent tearing symptom in a child with a naso-orbital injury was found to be a chronic cerebrospinal fluid (CSF) leak, not a blocked tear duct. This rare condition, linked to traumatic encephalocele, highlights the importance of considering CSF leaks in similar cases.
Area of Science:
- Ophthalmology
- Neurosurgery
- Pediatrics
Background:
- Nasolacrimal duct obstruction is a common condition in children, often resulting from injury.
- Surgical intervention like dacryocystorhinostomy is a standard treatment for persistent obstruction.
Observation:
- A 4-year-old presented with persistent tearing and meningitis three years post-naso-orbital injury.
- Initial treatment for presumed nasolacrimal duct obstruction did not resolve the tearing.
- Coronal CT scans revealed a traumatic encephalocele involving the posterior superior orbital roof.
Findings:
- A chronic orbital cerebrospinal fluid (CSF) leak was diagnosed as the cause of the persistent tearing.
- The CSF leak simulated symptoms of nasolacrimal duct obstruction.
- This represents a rare presentation of a chronic CSF leak in an otherwise asymptomatic child.
Implications:
- In pediatric patients with a history of naso-orbital fracture presenting with tearing, chronic CSF leak should be considered in the differential diagnosis.
- Early diagnosis and management of orbital CSF leaks are crucial to prevent complications such as meningitis.
- This case underscores the importance of advanced imaging in diagnosing complex cranio-orbital injuries.
Abstract:
A 4-year-old tearing child with obstruction of the nasolacrimal duct was treated with dacryocystorhinostomy three years after naso-orbital injury. However, what appeared to be tearing persisted, and meningitis developed. Coronal CT scans demonstrated traumatic encephalocele of the posterior superior orbital roof. A chronic orbital cerebrospinal fluid (CSF) leak was diagnosed. To our knowledge no case of chronic CSF leak has been reported that simulated tearing in an otherwise asymptomatic child. In the tearing patient who has a naso-orbital fracture the possibility of chronic CSF leak should be considered.