2015年11月10日 · Clinical features and natural history of acquired third, fourth, and sixth cranial nerve palsy. Eye (Lond). 2008; 22(5):691–696. PMID: 17293794; Suggested citation format: Klauer AJ, Kirkpatrick CA, Thurtell MJ. Cranial Nerve IV (Trochlear Nerve) Palsy: 57-year-old male complaining of vertical diplopia after head trauma.

2014年5月26日 · This patient highlights all of the typical features of bilateral 4th nerve palsies, including a V-pattern esotropia, reversing hypertropia on left and right gaze (also with left and right head tilt - not shown), underaction of the superior oblique in depression while adducting, and overaction of the inferior oblique in elevation while adducting.

2019年12月13日 · The patient's symptoms and signs were consistent with a right fourth (trochlear) nerve palsy. The patient reported an onset within the past year and had vertical fusional amplitudes of 2-3PD (normal 1-3PD), suggesting an acute fourth nerve palsy, rather than chronic, which would be expected to have greater than normal vertical fusional amplitudes.

2005年2月21日 · Myasthenia gravis, although a systemic disease, may present with only ocular symptoms 50% of the time. Patients often present complaining of binocular diplopia, and the ocular motility deficits may mimic other neurologic disorders, e.g. 6th nerve palsy, 4th nerve palsy, internuclear ophthalmoplegia, etc...

Cranial nerve IV (trochlear nerve) innervates the superior oblique muscle which is responsible for depression and intorsion of the eye. Superior oblique weakness will produce binocular vertical or torsional diplopia that is variable with different gaze directions (many times worse with downgaze).

The facial colliculus is an anatomic elevation on the floor of the 4th ventricle located medial to the sulcus limitance in the dorsal pons. It is formed by the abducens nucleus (CN VI) and the fascicle of the facial nerve (CN VII) as the motor fibers of CN VII loop around the CN VI nucleus (internal genu of the facial nerve).

Her findings are consistent with a cranial nerve VI palsy on the left. MRI showed nodular enhancement near the pons along the tract of the sixth nerve on the left that is consistent with a schwannoma of cranial nerve VI. Cranial nerve VI (CNVI or abducens nerve) innervates the lateral rectus muscle that is responsible for abduction of the eye.

2018年10月8日 · When there is a third nerve palsy without pupil involvement, this is more suggestive of microvascular ischemia, a complication often seen in poorly managed diabetics [1, 4-7]. Additionally, another important cause of ischemic third nerve palsy is vasculitis, particularly giant cell arteritis (GCA) [8]. Pathophysiology

2010年5月14日 · The second most common clinical finding was conjunctival chemosis, occurring in 10/11 patients. 8/11 patients has a sixth nerve palsy while 5/11 patients had a third nerve palsy and 5/11 had a fourth nerve palsy. An efferent pupillary defect secondary to a third nerve palsy was present in 5/11 patients.

2008年2月8日 · 7th nerve palsy 1) Right facial droop from 7th nerve palsy after tumor resection. Patient developed corneal exposure and epitheliopathy. 2) Using 5-0 Nylon suture and a rubber catheter as bolsters, the lids were sutured together to allow corneal surface to heal (temporary tarsorrhaphy). A permanent tarsorrhaphy was done later.