ear_pain
Differences
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| Both sides previous revisionPrevious revision | |||
| ear_pain [2026/10/18 01:13] – [neurologic pain] wh | ear_pain [2026/10/18 01:14] (current) – [neurologic pain] wh | ||
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| * cisternal course: | * cisternal course: | ||
| * emerges from the brainstem in the cerebellopontine angle, it sits tightly between the main motor root of the facial nerve (CN VII) and the vestibulocochlear nerve (CN VIII) | * emerges from the brainstem in the cerebellopontine angle, it sits tightly between the main motor root of the facial nerve (CN VII) and the vestibulocochlear nerve (CN VIII) | ||
| - | * most commonly by aberrance of the anterior inferior cerebellar artery (AICA) or, less frequently, the posterior inferior cerebellar artery (PICA) and vertebral artery or by ass lesions in the cerebellopontine angle, such as acoustic neuromas (vestibular schwannomas) or meningiomas | + | * most commonly by aberrance of the anterior inferior cerebellar artery (AICA) or, less frequently, the posterior inferior cerebellar artery (PICA) and vertebral artery or by ass lesions in the cerebellopontine angle, such as **acoustic neuromas** (vestibular schwannomas) or meningiomas |
| * at the internal auditory meatus (canalicular segment) | * at the internal auditory meatus (canalicular segment) | ||
| * fractures of the temporal bone, localized inflammation or operative injury | * fractures of the temporal bone, localized inflammation or operative injury | ||
| *at the geniculate ganglion (within the facial canal) | *at the geniculate ganglion (within the facial canal) | ||
| - | * [[zoster|Ramsay Hunt zoster]] or [[MS]] | + | |
| *at the external auditory canal and tympanic membrane (peripheral terminals) | *at the external auditory canal and tympanic membrane (peripheral terminals) | ||
| * peripheral sensory endings of the nerve supply the skin of the back wall of the ear canal and portions of the eardrum | * peripheral sensory endings of the nerve supply the skin of the back wall of the ear canal and portions of the eardrum | ||
| * mechanical irritation — such as cleaning the ear with a cotton swab, exposure to cold wind, or a severe outer ear infection can sometimes act as a physical trigger that exacerbates an already irritated nervus intermedius | * mechanical irritation — such as cleaning the ear with a cotton swab, exposure to cold wind, or a severe outer ear infection can sometimes act as a physical trigger that exacerbates an already irritated nervus intermedius | ||
ear_pain.txt · Last modified: 2026/10/18 01:14 by wh