Primary Spontaneous Inferior Clival Cerebrospinal Fluid Leak

Area of Science:

• Neurosurgery
• Neurology
• Otolaryngology

Background:

• Primary, spontaneous cerebrospinal fluid (CSF) leaks are uncommon neurological conditions.
• These leaks typically occur in obese women diagnosed with idiopathic intracranial hypertension (IIH).
• Defects in the clivus are a rare cause of spontaneous CSF leaks.

Observation:

• This report details the first documented case of a spontaneous CSF leak originating from the inferior-posterior wall of the clivus.
• The patient presented with an atypical profile, having a normal BMI (18.9 kg/m²) and no history of IIH.
• The leak was spontaneous, indicating no clear external cause or preceding trauma.

Findings:

• The study identifies a rare instance of spontaneous CSF leak in a patient demographic not typically associated with this condition.
• The anatomical location of the leak was specifically identified as the clivus.
• The patient's lack of obesity and IIH challenges existing epidemiological assumptions.

Implications:

• Accurate and timely diagnosis of CSF leaks is critical for preventing serious complications such as meningitis.
• This case expands the understanding of spontaneous CSF leaks, suggesting a broader range of patient profiles and potential etiologies.
• Recognizing atypical presentations is essential for improving diagnostic accuracy and patient management, potentially averting delayed treatment and adverse outcomes.