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Intracranial hypotension and cerebrospinal fluid leak. In: Youmans and Winn Neurological Surgery. Cerebrospinal fluid disorders and transitional neurosurgery. In: Bradley and Daroff's Neurology in Clinical Practice. Spontaneous spinal cerebrospinal fluid leaks and intracranial hypotension. Spontaneous intracranial hypotension: Treatment and prognosis. Spontaneous intracranial hypotension: Pathophysiology, clinical features and diagnosis. Possible complications of a cranial CSF leak that is left untreated include meningitis and air entering the spaces surrounding the brain (tension pneumocephalus). Abnormalities of the skull base or inner ear.Having a previous surgery on or around the skull.Risk factors for cranial CSF leaks include: Connective tissue disorders such as Marfan syndrome or Ehlers-Danlos syndrome.Having a previous surgery or procedure on or around the spine.Risk factors for spinal CSF leaks include: Sometimes a CSF leak doesn't have a known cause (spontaneous CSF leak). CSF rhinorrhea is a condition where CSF leaks out through a tear in the dura materthe layer of tough, fibrous tissue surrounding the brain and spinal cord.

Sometimes CSF leaks develop after very minor events: What you have described may be caused by a cerebrospinal fluid (CSF)protective liquid that coats your brain and spinal cordleak, more specifically CSF rhinorrhea.