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عمومی::
فلورسین
■ Endoscopic examination after the administration of intrathecal fluorescein can confirm a diagnosis of CSF leak and can indicate its location.
However, dilute fluorescein must be used, because
Intrathecal fluorescein is probably the most popular visible agent.
In brief, a lumbar puncture is performed for the introduction of fluo- rescein into the intrathecal space, the patient is kept in the head-down position, and nasal endoscopy is performed to iden- tify fluorescein within the nose and sinuses.
Specific blue-light filters may be used to enhance visual detection of fluorescein, but typically they are not necessary.
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