RESULTS: The main symptoms of subtype of petroclival meningiomas were headache, abducens nerve palsy and trigeminal neuropathy. 
In this report, a case of abducens nerve palsy after orbitoethmoidal knife injury is presented..
The ocular motor nerves (OMNs) comprise the oculomotor, trochlear and the abducens nerves. According to their course, they are divided into four or five anatomic segments: intra-axial, cisternal, cavernous and intra-orbital and, for the abducens nerve, an additional interdural segment.
The incidence of oculomotor nerve paralysis was 17.5% (10/57); trochlear paralysis, 1.8% (1/57); trigeminal nerve paralysis, 5.3% (3/57); abducens nerve paralysis, 35.1% (20/57); facial palsy, 14.0% (8/57); optic disc edema, 19.3% (11/57); nystagmus, 21.1% (12/57) and anisocoria, 10.5% (6/57).
The basilar plexus, the abducens nerve (sixth cranial nerve) passing through the basilar plexus, and the paraclival portion of the ICA can be injured when careful dissection is not performed.
RESULTS: Investigations revealed intracranial hypertension and bilateral abducens nerve palsies.
Eventually, the patient presented to us with otitic hydrocephalus, increased intracranial pressure, papilledema, oculomotor and abducens nerve palsy, and severe right-side visual loss are prominent features..
abducens nerve palsy associated with spinal surgery is extremely rare. We report an extremely rare case of abducens nerve palsy after lumbar spinal fusion surgery with inadvertent dural tearing, which resolved spontaneously and completely. After an interval of bed rest, the severe headache disappeared, but four days after surgery he experienced diplopia during right gaze, which was caused by right-side palsy of the abducens nerve.
Two months later, she developed abducens nerve palsy, chemosis, and pulsatile tinnitus.
OBJECTIVE: We describe a patient who presented with recurrent, contralateral abducens nerve palsy resulting from acute sphenoiditis. CONCLUSIONS: Although cranial nerve palsies associated with isolated sphenoiditis have been reported, we describe a unique case of recurrent isolated sphenoiditis causing contralateral abducens nerve palsy.
However, isolated bilateral abducens nerve palsy is extremely rare. CASE STUDY: This study describes a case of isolated bilateral abducens nerve palsy in a 35-year-old male with head trauma without cervical and skull fractures. CONCLUSIONS: Based on this case, arteriovenous fistula should be considered as a cause of bilateral isolated abducens nerve palsy..
The definition of these subregions was based on the identification of some anatomic landmarks (the internal carotid artery from the lacerum to the intradural segment, the abducens nerve, and the hypoglossal canal) that limit the bone opening via the endonasal route and the natural well-established corridors via the retrosigmoid route.
BACKGROUND: Moebius syndrome, a rare congenital disorder of varying severity, involves multiple cranial nerves and is characterized predominantly by bilateral or unilateral paralysis of the facial and abducens nerves.
A 24-year-old man, who had an asymptomatic septum pellucidum cyst incidentally found one year previously, presented with severe headache and right abducens nerve palsy caused by expansion of the midline cyst.
The main lateral limitations of the endonasal approaches were the optic nerves, lateral cavernous sinus, vidian nerve, internal carotid artery, abducens nerve in Dorello's canal, jugular tubercle, and hypoglossal canals.
The abducens nerve ended on the posterior one-third of the lateral rectus muscle in 86 specimens.
PURPOSE: To describe a rare presentation of pituitary apoplexy as unilateral abducens nerve palsy demonstrating the various presentations of the condition. RESULTS: A 48-year-old man presented with isolated right abducens nerve palsy.
In this report, we present unusual clinical and magnetic resonance imaging (MRI) findings in a patient with neurobrucellosis and unilateral abducens nerve palsy.
On thin-section brain stem magnetic resonance imaging, the left abducens nerve was absent, and the right and left oculomotor nerves were severely hypoplastic.
CONCLUSION: Tuberculosis is a mediating factor for abducens nerve palsy in children.
RESULTS: In 10 patients, the abducens nerve (cranial nerve VI) was absent or showed hypoplasia in the brain stem, cavernous sinus, and orbit.
Gradenigo's syndrome (GS) is a rare disease characterised by the triad otitis media, pain in the region innervated by the first and the second division of trigeminal nerve and abducens nerve palsy. We report the case of a 4-year-old child that was admitted for facial nerve palsy and abducens nerve palsy subsequent to a 2-week persistent pain in the right ear.
A 74-year-old woman presented with abducens nerve palsy, postganglionic Horner syndrome and sensory disturbance in the territory of the ophthalmic nerve on the left side. We emphasize that the combination of abducens nerve palsy and ipsilateral postganglionic Horner syndrome may indicate a lesion located within the posterior portion of the cavernous sinus or in its vicinity.
RESULTS: Four of 5 patients with Duane syndrome and 4 of 5 patients with abducens nerve palsy had successful horizontal alignment, defined as reduction or elimination of head turn, a deviation < or =10(Delta), and resolution of diplopia. Patients with abducens nerve palsy were noted to have a reduction of esotropia with improved abduction.
Schwannomas of the abducens nerve are extremely rare. Right abducens nerve paresis was noted on neurologic examination. As the encapsulated partially suckable yellowish tumor was debulked and dissected, the abducens nerve was found to fan along and be attached to the medial surface of the tumor, which was cut at this point.
BACKGROUND: The clinical course of abducens nerve palsy associated with skull base tumour is rarely reported. In this study, we examined the post-operative course of abducens nerve palsies associated with various skull base tumours. Among them, nine patients presented with abducens nerve palsies (ten nerves) following surgery. We evaluated the function of the abducens nerves in these patients on admission, at discharge, and periodically in the outpatient clinic. FINDINGS: Four of the abducens nerve palsies already existed prior to surgery, and six of them developed post-operatively. In three patients with petro-clival meningiomas, the abducens nerves were completely transected during surgery, and one was reconstructed using fibrin glue. This patient remarkably recovered from the abducens nerve palsy within 2 years. CONCLUSIONS: The abducens nerve palsies in pituitary adenomas and trigeminal schwannomas showed a better clinical course compared to those in skull base meningiomas. The abducens nerve palsies that occur with skull base meningiomas are less likely to recover.
In this retrospective case series one patient with an abducens nerve palsy is presented as an example.
Schwannomas of the abducens nerve are extremely rare tumors affecting cavernous, cisternal or both segments of sixth cranial nerve. The correct diagnosis of an abducens nerve schwannoma is established by the intraoperative finding of a tumor attachment to the sixth nerve and by histopathological analysis.
The three commonest specific neuro-ophthalmic conditions were abducens nerve palsy (1.27 per 100,000), anterior ischemic optic neuropathy (1.08 per 100,000) and oculomotor nerve palsy (0.91 per 100,000).
The quadrangular space is opened, which is bound by the internal carotid artery medially and inferiorly, V2 laterally, and the abducens nerve superiorly.
IHS is an uncommon manifestation of neuropsychiatric SLE (NPSLE) and is characterized by an elevated intracranial pressure, papilledema, and headache with occasional abducens nerve paresis, absence of a space-occupying lesion or ventricular enlargement, and normal cerebrospinal fluid chemical and hematological constituents.
PURPOSE: Benign abducens nerve palsy is rare in childhood. PATIENTS AND METHODS: We carried out a retrospective study of 12 consecutive children with benign abducens nerve palsy.
Benign recurrent abducens nerve palsy is rare. The authors describe a Turkish child with recurrent abducens nerve palsy with no obvious etiology..
Schwannomas of the abducens nerve are extremely uncommon tumors.
We present an extraordinary case of typhoid fever, manifesting as hand cyanosis as well as abducens nerve paresis, all of which promptly resolved with antibiotics..
The dural sleeve of the abducens nerve, the dorsal meningeal artery or its medial branch, and the venous blood space were located below the PSL in all specimens, and the petrous or sphenoidal insertion of the PSL varied in five specimens.
After the neurosurgical approach and the clipping of the aneurysm, the vision significantly improved and the palsy of the abducens nerve disappears. This is a very uncommon clinical correlation between the abducens nerve palsy and the posterior communicating artery aneurysm..
Although the incidence of unilateral abducens nerve palsy has been reported to be as high as 1% to 2.7% of head trauma cases, bilateral abducens nerve palsy following trauma is extremely rare. In this report, we present the case of a patient who developed a bilateral abducens nerve palsy and hypoglossal nerve palsy 3 days after suffering head trauma.
OBJECTIVE: In this report, we aimed to investigate the patients that presented at our clinic complaint with diplopia due to the abducens nerve palsy and neurosurgical disease. METHODS: The study design was a retrospective review of ten cases with the abducens nerve palsy. The causes of the abducens nerve paralysis of our patients were as follows: two cases with head trauma, three cases with pituitary tumors, one case with sphenoid sinus mucocele, one case with greater superficial petrosal nerve cellular schwannoma at the petrous apex, one case with hypertensive intraventricular hemmorhage, one case with hydrocephalus, and one case with parotid tumor and skull base/brain stem invasion. The lesions sited at the subarachnoid portion of the abducens nerve or in the cavernous sinus, the abducens nerve palsy improved or botilinum injection was performed during recovery period. CONCLUSION: We presented abducens nerve palsy cases due to neruosurgical disorders.
abducens nerve palsy after low-level Le Fort 1 maxillary osteotomy is a rare complication, but with few cases reported, its true incidence is not known.
The authors present the case of a 13 month old boy with a contralateral abducens nerve palsy following cochlear implantation that led to the diagnosis of an extradural haematoma on computerised tomography scanning.
One bilateral cavernous sinus DAVF was embolized with Onyx via the inferior petrosal sinus by two operations, and transient abducens nerve palsy occurred after embolization.
This report is the first of a patient with a greater superficial petrosal nerve CS presenting with abducens nerve palsy and xerophthalmia. Neurological examination was normal except for the presence of right abducens nerve palsy. CONCLUSION: The abducens nerve palsy improved completely in the follow-up period, but the decreased tear secretion did not resolve. The greater superficial petrosal nerve schwannoma should be considered in the differential diagnosis of the abducens nerve palsy and petrous apex mass..
CASE REPORT: A case of isolated schwannoma of the orbit, arising from the terminal branches of the abducens nerve to the lateral rectus muscle, is reported.
A 56-year-old German male was admitted with bilateral abducens nerve palsy, amblyacousia and intractable headaches.
METHODS: We applied a phase-plane technique that compared each eye's velocity as a function of change in position (normalized displacement) in 22 patients with disease variously affecting the brainstem reticular formation, the abducens nucleus, the medial longitudinal fasciculus, the oculomotor nerve, the abducens nerve, the neuromuscular junction, or the extraocular muscles; 10 age-matched subjects served as controls. RESULTS: We found three different patterns of disconjugacy throughout the course of horizontal saccades: early abnormal velocity disconjugacy during the first 10% of the displacement in patients with INO, oculomotor or abducens nerve palsy, and advanced extraocular muscle disease; late disconjugacy in patients with disease affecting the neuromuscular junction; and variable middle-course disconjugacy in patients with pontine lesions.
We describe the case of a 13-year-old boy who developed isolated abducens nerve palsy after closed head trauma..
An 11-year-old girl presented with a very rare traumatic retroclival epidural hematoma manifesting as bilateral abducens nerve palsy, deviation of the uvula to the left, and weakened movement of tongue, which developed after a motor vehicle accident.
We recorded horizontal saccades in 22 patients with disease affecting the brainstem reticular formation, medial longitudinal fasciculus (INO), abducens nerve, neuromuscular junction and extraocular muscles, and in 10 age-matched controls.
The authors describe a case of Miller-Fisher syndrome in a child who presented to the ophthalmology department with bilateral abducens nerve palsies.
RESULTS: The neurovascular relationships in the lateral wall of the cavernous sinus that are visible by the endonasal transsphenoidal approach but not visible by the transcranial microsurgical approach are as follows: between the oculomotor nerve and the tentorial artery, between the distal segment of the trochlear nerve and the tentorial artery, between the ophthalmic nerve and the inferolateral trunk, and between the abducens nerve and the inferolateral trunk.
We describe a rare and interesting progressive case of lymphocytic hypophysitis accompanied later by paresis of the left abducens nerve. The patient was diagnosed as having progressive lymphocytic hypophysitis accompanied by paresis of the left abducens nerve, which was subsequently confirmed by biopsy.
A 50-year-old man presented with a symptomatic aneurysm arising from the right inferior cavernous sinus artery (ICSA) associated with a cerebral arteriovenous malformation (AVM) manifesting as a 3-month history of progressive right abducens nerve palsy.
A 50 year old man experienced left hemifacial pain followed by left abducens nerve palsy.
In this article, we report a patient with OM that presented recurrent palsy of the abducens nerve and other atypical features. Case reports of OM with abducens nerve palsy were also reviewed..
FINDINGS: The characteristic symptom was ataxia in the UC type (37.5%), abducens nerve palsy in the CS type (64.3%) and trigeminal neuropathy, mainly neuralgia in the PA type (80.0%) with a higher statistical difference from other subtypes.
Although meningoencephalitis and acute disseminated encephalomyelitis are common complications, there are few cases of acute transverse myelitis and isolated abducens nerve palsy associated with M.
We report a case of primary CNS lymphoma involving both internal auditory canals that presented with sudden deafness and disequilibrium accompanied by facial and abducens nerve palsy..
INTRODUCTION: abducens nerve palsy (ANP) is the most common isolated palsy. The injury of the abducens nerve can occur anywhere along its long course, so differential diagnosis of ANP occasionally demands thorough investigation to find the proper cause.
PURPOSE: To compare the effects and complications of botulinum toxin injection into the medial rectus muscle with and without electromyographic (EMG) assistance for treatment of abducens nerve palsy. METHODS: In a prospective, comparative, interventional case series, botulinum toxin was injected into the medial rectus muscle of 23 patients with esotropia secondary to abducens nerve palsy within 3 months of onset. CONCLUSIONS: The effectiveness of botulinum toxin injection is the same with or without EMG assistance into the medial rectus muscle for treatment of abducens nerve palsy.
abducens nerve palsy was considered to be caused by the involvement of infranuclear abducens nerve fibers.
Recent reports showed the absence of the subarachnoid part of the abducens nerve on magnetic resonance imaging (MRI) in types I and III. We present a case of Duane syndrome type II, in which severe hypoplasia of the abducens nerve was revealed on high-resolution MRI..
CASE DESCRIPTION: We report a 65-year-old woman who presented with a large clival plasmacytoma causing right trigeminal and abducens nerve palsies and was diagnosed with MM after transsphenoidal biopsy.
The first patient presented with subacute dull headache in the left temporal area followed by left abducens nerve palsy.
CASE DESCRIPTION: A 31-year-old man presented with progressive left abducens nerve palsy with headache and nausea.
After 3 courses of CHOP therapy, right abducens nerve paralysis appeared and was diagnosed as central nervous system infiltration with lymphoma cells.
A disruption in the human CPA6 gene is linked to Duane syndrome, a defect in the abducens nerve/lateral rectus muscle connection.
Transient abducens nerve palsy was encountered in 1.
Two years later, the patient presented with right abducens nerve palsy, and was referred to our hospital.
We report a renal transplant recipient who developed aseptic meningitis and diplopia from abducens nerve (cranial nerve VI) palsy following IGIV administration for antibody-mediated rejection.
Intraorbital and intracranial abducens nerves (CN6) were small to absent, particularly ipsilateral to abduction deficiency.
Isolated abducens nerve palsies associated with intracranial aneurysms have rarely been reported.
RESULTS: The most commonly encountered cranial nerve deficit resulting from ICH (> 80% of reported cases) is an abducens nerve paresis, which may occur unilaterally or bilaterally. Cranial nerve paresis, especially of the abducens nerve, is frequently reported.
The diameter of the abducens nerve in the superior orbital fissure was on average 1.54 +/- 0.24 mm on the right and 1.54 +/- 0.22 on the left.
Therefore, she was diagnosed of abducens nerve palsy caused by herpes zoster ophthalmicus.
BACKGROUND: This study was performed to reveal the incidence and the etiology of abducens nerve pareses associated with aneurysmal subarachnoid hemorrhage. RESULTS: In total 101 patients met the study requirements and abducens nerve pareses was apparent in 6 patients (5.9%). There were significant differences between the group with abducens nerve pareses and the group without in regard to the thickness of the prepontine subarachnoid clot on CT scan. CONCLUSIONS: The prepontine subarachnoid clot seemed to be the factor inducing the abducens nerve pareses..
The applicability of the IOD is demonstrated with an electrophysiological and anatomical account of the properties of the abducens nerve.
In the first case (78-year-old female; right side), the anterior inferior cerebellar artery (AICA) arose from the internal carotid artery passing medial to the abducens nerve. In the second case (75-year-old female, left side), the PPTA branched from the internal carotid artery, and passed lateral to the abducens nerve, giving off an artery connecting with the AICA.
OBJECTIVE: Only a few anatomic studies concerning the intra- or extracranial course of the abducens nerve (Cranial Nerve VI) have been reported. Here we provide an anatomically and surgically oriented classification of the abducens nerve, analyze the microanatomy of the nerve and the surrounding connective and/or neurovascular structures, and provide measurements and anatomic topography. RESULTS: The abducens nerve is divided into five segments, of which three are intracranial (cisternal, gulfar, and cavernous) and two are orbital (fissural and intraconal). Using two opposing surgical routes (microsurgical transcranial and endoscopic endonasal approaches) allows us to clearly reveal the spatial relationships of the abducens nerve with other neurovascular structures on the different nerve segments. CONCLUSION: The classification of five segments for the abducens nerve seems anatomically valid and is surgically oriented with respect to both the microscopic and endonasal endoscopic approaches.
A 41-year-old man complained of fluctuating headache with sudden left abducens nerve palsy.
-
[ View All ]
