Current imaging of cerebrospinal fluid leaks

Area of Science:

• Neurology
• Radiology
• Otolaryngology

Background:

• Cerebrospinal fluid (CSF) leaks arise from defects in the dura and skull base, posing a significant risk of central nervous system infections.
• Prompt diagnosis of CSF leaks is critical for patient management and preventing severe complications.
• While laboratory tests for Beta-2 transferrin aid diagnosis, their availability can be limited.

Purpose of the Study:

• To review the current literature on the diagnosis of CSF leaks.
• To provide recommendations for appropriate radiological investigations in suspected CSF leak cases.
• To highlight the importance of imaging in the context of minimally invasive endoscopic repair.

Main Methods:

• Literature review of diagnostic methods for CSF leaks.
• Analysis of the role of laboratory testing (Beta-2 transferrin).
• Evaluation of the significance of various imaging modalities.

Main Results:

• Imaging plays a pivotal role in diagnosing CSF leaks, especially when laboratory assays are not readily available.
• Accurate anatomical localization through imaging is essential for successful minimally invasive endoscopic repair.
• Specific radiological investigation protocols are suggested for suspected CSF leaks.

Conclusions:

• Timely diagnosis of CSF leaks is crucial due to the risk of CNS infection.
• Imaging is a cornerstone in the diagnostic pathway for CSF leaks, complementing or substituting laboratory tests.
• Radiological assessment is indispensable for guiding effective surgical interventions, particularly endoscopic repairs.