Slide the patient's head off the examining table so the head is below the body. Share Your Story The facial nerve is a nerve that controls the muscles on the side of the face. The most important landmarks for identifying the facial nerve in the mastoid are the horizontal semicircular canal, the fossa incudis, and the digastric ridge. The second genu is lateral and posterior to the pyramidal process. Infectious mononucleosis can present with multiple or single cranial palsies of acute onset, with bilateral facial paralysis being the most common combination. The Brainstem Spinal sensory trigeminal tract.
Facial Nerve Disorders
They also yield excellent results in static facial reanimation. The ansa hypoglossi often is used when a combination of parotidectomy and neck dissection is performed. Diagnosis is clinical, but if onset is not clearly acute, MRI should be done. CT or MRI scans. These axonal growth cones advance with motile elements to the distal stump, guided by the proliferating Schwann cell scaffold formed by the distal stump. However, the surgeon must decide if direct anastomosis of the proximal and distal stump is possible microneurorrhaphy or if interposition nerve grafting is necessary.
Facial Nerve Palsy - Neurologic Disorders - Merck Manuals Professional Edition
In patients with severe injury, progress is followed with nerve conduction studies. Facial Nerve Neuroma A nonmalignant fibroid growth may grow in the facial nerve itself. Downward deviation of the lateral lip aspect often requires lateral lip wedge resection. Tiny needles are used to measure the responses.
The Facial Nerve (CN VII)
Description: Capillary refill and the pinprick test can be used to assess flap viability. Nerve conduction studies also can be used as adjunct studies. Also alert your doctor if you have other conditions like heart problems, HIV, or pregnancy. After identification of the gracilis muscle, separate the adductor longus muscle.