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Enlargement of Meckel's cave in patients with spontaneous cerebrospinal fluid leaks

Spontaneous cerebrospinal fluid (CSF) leaks have imaging findings consistent with chronically elevated intracranial pressure, such as empty sella. Meckel's cave is a CSF‐filled space that houses the trigeminal ganglion at the cranial base. Our objective in this study was to evaluate “dilated” Meckel's cave as a radiologic sign in patients with elevated intracranial pressure spontaneous CSF leaks and compare the dimensions with those from a control cohort.