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  • Title: Dural defects of the temporal bone.
    Author: Montgomery WW.
    Journal: Am J Otol; 1993 Nov; 14(6):548-51. PubMed ID: 8296856.
    Abstract:
    Cerebrospinal fluid leakage (otorrhea or otorhinorrhea) from the temporal bone is the end result of rupture of the arachnoid membrane or herniation of the brain through a defect in the protective dura mater and calvarium. The rupture may be small, admitting only a herniation of arachnoid (meningocele), or be large enough to accommodate brain tissue (encephalocele). Flow of cerebrospinal fluid through either type of fistula may be a trickle or profuse, chronic or intermittent, and usually ceases temporarily for a few weeks following an attack of meningitis. The etiology, anatomy, signs and symptoms, and various methods of treatment for cerebrospinal fluid otorrhea and otorhinorrhea are discussed.
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