ArticleNeurosurgery practice2026
The Incidence of Radiographic Markers of Idiopathic Intracranial Hypertension in Those With Spontaneous Cerebrospinal Fluid Leak.
Article in Neurosurgery practice, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
BACKGROUND AND
objectivesIncreased intracranial pressure as seen in idiopathic intracranial hypertension (IIH) can lead to spontaneous cerebrospinal fluid (CSF) leaks. However, CSF leak may relieve classic signs of increased intracranial pressure, leading to a missed diagnosis of IIH. The presence of radiographic markers of IIH may be one method to predict the diagnosis without high lumbar puncture pressures. We evaluate the incidence of radiographic markers classically associated with IIH in those with spontaneous CSF leaks.
methodsA review of the electronic medical record was conducted for patients admitted for spontaneous CSF leak between January 2012 and December 2022. Demographic, radiological (optic nerve sheath diameter, presence and degree of empty sella turcica, Meckel cave size and volume), and clinical (ophthalmic examination findings, presenting symptoms, IIH diagnostic status) data were collected.
resultsThirty patients (mean age: 51.7 years) were included in the analysis. Of 14 patients with recorded preoperative or intraoperative LP pressures, 5 met the criteria for diagnosis of IIH based on elevated lumbar puncture pressure (>25 cm H
conclusionThis study provides us an incidence of IIH associated radiographic markers in the CSF leak population. Further study is needed to investigate if radiographic parameters in these patients may assist in diagnostic criteria of IIH given that papilledema and elevated lumbar pressures may not be present.
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