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Abducens Nerve

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https://www.readbyqxmd.com/read/27916722/unique-diagnostic-features-and-surgical-strategy-for-intracranial-carotid-sympathetic-plexus-schwannoma-case-report-and-literature-review
#1
Hajime Takase, Kohta Araki, Shunsuke Seki, Kana Takase, Hidetoshi Murata, Nobutaka Kawahara
BACKGROUND: Intracranial carotid sympathetic plexus schwannoma (CSPS) is extremely rare; thus differential diagnostic criteria, optimal surgical strategies, and even a precise definition are lacking. Here we describe a case of CSPS and propose a definition and classification for previously reported cases. CASE DESCRIPTION: A 54-year-old male presented with hypacusis and abducens nerve palsy. Radiological examinations revealed a well-enhanced mass at the right medial temporal base with erosion of the petrous apex and intact perilesional cortical bone...
December 1, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27881687/bilateral-cisternal-abducens-nerve-involvement-with-ophthalmoplegic-migraine
#2
EDITORIAL
Richa Tripathi, Alexandros Tselis, Evanthia Bernitsas
No abstract text is available yet for this article.
November 23, 2016: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/27876190/-bilateral-abducens-nerve-palsy-as-the-initial-clinical-manifestation-of-meningococcal-meningitis
#3
Ana Camacho Salas, Pablo Rojo Conejo, Noemí Núñez Enamorado, Rogelio Simón de Las Heras
No abstract text is available yet for this article.
November 18, 2016: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/27858386/can-the-part-of-abducens-nerve-encased-in-the-tumor-be-reconstructed-entirely-by-diffusion-tensor-imaging-dti
#4
Kaichuang Yang, Lin Lou, Tejashwi Shrestha, Manish Kolakshyapati
No abstract text is available yet for this article.
October 14, 2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27843685/delayed-hydrocephalus-associated-with-traumatic-atlanto-occipital-dislocation-case-report-and-literature-review
#5
Ashish Sharma, Ha Son Nguyen, Abhishiek Sharma, Andrew Lozen, Shekar Kurpad
BACKGROUND: Traumatic atlanto-occipital dislocation (AOD) is a rare but often fatal injury. Consequently, long-term data regarding surviving patients have been limited. In particular, the occurrence of hydrocephalus is not well-documented. CASE DESCRIPTION: A 33-year-old male sustained AOD as a consequence of a motor vehicle collision. Although he did well initially after an occipitocervical fusion, 1 month after his operation, he exhibited signs of increased intracranial pressure (bilateral abducens nerve palsies, worsening headaches, and fatigue)...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27825557/probable-pseudotumor-cerebri-complex-in-25-children-further-support-of-a-concept
#6
Daniel Tibussek, Felix Distelmaier, Michael Karenfort, Stefani Harmsen, Dirk Klee, Ertan Mayatepek
BACKGROUND: Cerebrospinal fluid (CSF) opening pressure (OP) of ≥28 cm H2O is now considered a diagnostic criterion for Pseudotumor cerebri syndrome (PTCS) in children. However, it has been proposed that a diagnosis of "probable" PTCS can be made with an OP < 28 cm H2O if other diagnostic criteria are met. We report a group of children with probable PTCS. METHODS: Retrospective analysis of 25 children diagnosed with PTCS but with a CSF OP below 28 cm H2O...
October 27, 2016: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/27791521/perpetuation-of-errors-in-illustrations-of-cranial-nerve-anatomy
#7
C Eduardo Corrales, Albert Mudry, Robert K Jackler
For more than 230 years, anatomical illustrations have faithfully reproduced the German medical student Thomas Soemmerring's cranial nerve (CN) arrangement. Virtually all contemporary atlases show the abducens, facial, and vestibulocochlear nerves (CNs VI-VIII) all emerging from the pontomedullary groove, as originally depicted by Soemmerring in 1778. Direct observation at microsurgery of the cerebellopontine angle reveals that CN VII emerges caudal to the CN VIII root from the lower lateral pons rather than the pontomedullary groove...
October 28, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27782818/bilateral-abducens-nerve-palsy-in-an-infant-case-of-fulminant-acute-disseminated-encephalomyelitis-a-case-report
#8
Zhiliang Yang, Guilian Sun
BACKGROUND: Sixth (abducens) nerve palsy (ANP) is far less frequent in children and has not been reported as a sign of acute disseminated encephalomyelitis (ADEM). We present an infant case of ADEM with bilateral abducens nerve palsy (BANP). CASE PRESENTATION: We report one case of BANP in a 15-month-old boy of fulminant ADEM. The patient underwent physical examinations and brain MRI scan three times during about six months follow-up. The patient had BANP and developmental regression when he regained consciousness from a coma, and the signs had persisted for 6-months...
October 26, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27725276/augmented-superior-rectus-transposition-with-medial-rectus-recession-in-patients-with-abducens-nerve-palsy
#9
Preeti Patil-Chhablani, Krishnapriya Kothamasu, Ramesh Kekunnaya, Virender Sachdeva, Vivek Warkad
PURPOSE: To evaluate the surgical outcome of augmented superior rectus transposition (SRT) and medial rectus recession (MRc) in patients with abducens nerve palsy. METHODS: The medical records of consecutive patients with abducens nerve palsy who underwent unilateral or bilateral simultaneous SRT with MRc from January 2012 to December 2014. Patients with previous strabismus surgery or botulinum toxin injection were excluded. Primary outcome measures were esotropia in primary position and abduction deficit...
October 7, 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27695556/spontaneous-recovery-of-post-traumatic-acute-bilateral-facial-and-abducens-nerve-palsy
#10
Pravin Salunke, Karthigeyan Madhivanan, Nasib Kamali, Ravi Garg
Bilateral abducens and facial palsy following head injury are extremely rare. We present a patient with post-traumatic bilateral facial and abducens palsy. There were bitemporal fractures that did not correspond with the facial canal. Despite complete facial palsy with axonal degeneration and > 90% facial muscle degenervation, conservative management helped. This report highlights the importance of conservative management in post-traumatic complete facial palsy especially when the fracture line does not correspond with the facial canal...
October 2016: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/27673084/poster-329-rehabilitation-of-horizontal-diplopia-due-to-abducens-nerve-palsy-in-an-idiopathic-pituitary-apoplexy-a-case-report
#11
Cora H Brown, Alexander J Feng, Ilya Igolnikov, Ernesto Cruz
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27614437/surgical-anatomy-of-the-cavernous-sinus-superior-orbital-fissure-and-orbital-apex-via-a-lateral-orbitotomy-approach-a-cadaveric-anatomical-study
#12
Murat Ulutas, Suat Boyacı, Akın Akakın, Türker Kılıç, Kaya Aksoy
BACKGROUND: Tumors of the middle fossa or cavernous sinus (CS), or intraorbital tumors, can penetrate each other through the superior orbital fissure (SOF) or neighboring tissue. These complicated pathologies are often treated with highly invasive surgical procedures. In this article, we demonstrate surgical anatomic dissections of the CS, SOF, orbital apex (OA), and dura mater extending to the periorbita from the middle fossa, by performing an epidural dissection via a lateral orbitotomy approach, and discuss findings that may provide guidance during surgery in these regions...
November 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/27498818/a-case-of-possible-paraneoplastic-neurological-syndrome-presenting-as-multiple-cranial-nerve-palsies-associated-with-gallbladder-cancer
#13
Misako Kaido, Yoshihito Yuasa, Tameyoshi Yamamoto, Satoru Munakata, Naohiro Tagawa, Keiko Tanaka
We report the case of a patient who had developed multiple cranial nerve palsies in the course of possible paraneoplastic neurological syndrome (PNS) associated with gallbladder cancer. Twelve days prior to visiting our hospital, a 69-year-old man began experiencing neurological symptoms, beginning with diplopia and progressing to ptosis of the left palpebra and subsequent complete closure of the eye within 8 days. Results of the initial medical examination indicated paresis of left oculomotor (III) and abducens (VI) nerves...
September 29, 2016: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/27477418/alternating-hemiplegia-with-ipsilateral-supranuclear-facial-palsy-and-abducens-nerve-palsy-caused-by-pontine-infarction
#14
Shinichiro Maeshima, Tetsuya Tsunoda, Sayaka Okamoto, Yasunori Ozeki, Shigeru Sonoda
A 62-year-old right-handed man was diagnosed with a cerebral infarction in the ventromedial region of the left lower pons. He showed left abducens nerve palsy, left-sided supranuclear palsy of the lower part of the face and right hemiparesis. We hypothesized that the mechanism underlying the patient's ipsilateral supranuclear facial palsy involved the corticofacial fibers after they crossed the midline.
2016: Internal Medicine
https://www.readbyqxmd.com/read/27476917/preoperative-visualization-of-cranial-nerves-in-skull-base-tumor-surgery-using-diffusion-tensor-imaging-technology
#15
Ma Jun, Su Shaobo, Yue Shuyuan, Zhao Yan, Li Yonggang, Chen Xiaochen, Ma Hui
AIM: The present study aimed to visualize CN using diffusion tensor imaging (DTI) with special parameters. It also involved the evaluation of preoperative estimates and intraoperative confirmation of the relationship between nerves and tumor by verifying the accuracy of visualization. MATERIAL AND METHODS: 3T magnetic resonance imaging scans including 3D-FSPGR, FIESTA, and DTI were used to collect information from 18 patients with skull base tumor. DTI data were integrated into the 3D slicer for fiber tracking and overlapped anatomic images to determine course of nerves...
April 16, 2015: Turkish Neurosurgery
https://www.readbyqxmd.com/read/27462255/lacrimal-sac-mucoepidermoid-carcinoma-with-metastases-to-the-cavernous-sinus-following-dacryocystorhinostomy-treated-with-stereotactic-radiotherapy
#16
Jonathan C P Roos, Bijan Beigi
PURPOSE: We report a very good outcome in a 44-year-old woman in whom cancer was missed as the cause of nasolacrimal duct obstruction and dacryocystitis and which was deemed inoperable after spreading to the cavernous sinus. CASE REPORT: The patient was referred to our unit 12 months following uneventful right dacryocystorhinostomy for nasolacrimal duct obstruction. This had been complicated by the formation of a significant canthal swelling 6 months later, which had been excised at that time...
January 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27424045/isolated-schwannoma-involving-extraocular-muscles
#17
Fatma Yulek, Joseph L Demer
BACKGROUND: Progressive strabismus initially considered idiopathic may be caused by isolated schwannomas of motor nerves to extraocular muscles, detectable only on careful imaging. This study reviewed clinical experience of a referral practice in identifying schwannomas on magnetic resonance imaging (MRI). METHODS: We reviewed 647 cases imaged for strabismus to identify presumed cranial nerve schwannomas, identified by gadodiamide-enhanced, high-resolution surface coil orbital MRI and thin-section cranial MRI...
August 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27411912/abducens-nerve-palsy-as-a-postoperative-complication-of-minimally-invasive-thoracic-spine-surgery-a-case-report
#18
Luiz Henrique Dias Sandon, Gun Choi, EunSoo Park, Hyung-Chang Lee
BACKGROUND: Thoracic disc surgeries make up only a small number of all spine surgeries performed, but they can have a considerable number of postoperative complications. Numerous approaches have been developed and studied in an attempt to reduce the morbidity associated with the procedure; however, we still encounter cases that develop serious and unexpected outcomes. CASE PRESENTATION: This case report presents a patient with abducens nerve palsy after minimally invasive surgery for thoracic disc herniation with an intraoperative spinal fluid fistula...
July 13, 2016: BMC Surgery
https://www.readbyqxmd.com/read/27399242/cranial-nerve-disorders-in-children-mr-imaging-findings
#19
Jae-Yeon Hwang, Hye-Kyung Yoon, Jeong Hyun Lee, Hee Mang Yoon, Ah Young Jung, Young Ah Cho, Jin Seong Lee, Chong Hyun Yoon
Cranial nerve disorders are uncommon disease conditions encountered in pediatric patients, and can be categorized as congenital, inflammatory, traumatic, or tumorous conditions that involve the cranial nerve itself or propagation of the disorder from adjacent organs. However, determination of the normal course, as well as abnormalities, of cranial nerves in pediatric patients is challenging because of the small caliber of the cranial nerve, as well as the small intracranial and skull base structures. With the help of recently developed magnetic resonance (MR) imaging techniques that provide higher spatial resolution and fast imaging techniques including three-dimensional MR images with or without the use of gadolinium contrast agent, radiologists can more easily diagnose disease conditions that involve the small cranial nerves, such as the oculomotor, abducens, facial, and hypoglossal nerves, as well as normal radiologic anatomy, even in very young children...
July 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27375913/ophthalmic-manifestations-of-hematopoietic-malignancy
#20
Natsuyo Yoshida-Hata, Naomichi Katai, Toshiyuki Oshitari
Purpose. To report the ocular findings in patients with hematopoietic malignancy with optic nerve involvement and abducens nerve palsy. Methods. The medical records of all cases of hematopoietic cancer with ophthalmic involvements seen in the Department of Ophthalmology of the National Center for Global Health and Medicine between 2009 and 2014 were reviewed. Results. Eight patients with hematopoietic cancer with optic nerve invasion or abducens nerve palsy were studied. The primary diseases were 3 cases of multiple myeloma, 1 case of acute lymphocytic leukemia, 1 case of follicular lymphoma, and 3 cases of AIDS-related lymphoma...
2016: Case Reports in Ophthalmological Medicine
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