Abstract
• Two categories of spontaneous cerebral spinal fluid otorhhea: (1) pediatric: ages 1–5 years, (2) adult: over 50 years of age
• Pediatric preformed pathways are:
– Enlarged fallopian canal
– Patent tympanomeningeal (Hyrtl’s) fissure
– Mondini dysplasia with communication to internal auditory canal
• The adult form is caused by enlarging arachnoid granulations through the middle fossa or posterior fossa surfaces of the temporal bone.
• CT (1-mm cuts) of the temporal bone in both axial and coronal planes is best to demonstrate the bony defect and associated soft tissue mass.
• Surgical repair (middle fossa approach for tegmen defects; mastoidectomy for posterior fossa defects) with soft tissue repair is recommended.
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(2008). Spontaneous Cerebral Spinal Fluid Otorrhea. In: Ear Surgery. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77412-9_8
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DOI: https://doi.org/10.1007/978-3-540-77412-9_8
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