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Abducens Nerve

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https://www.readbyqxmd.com/read/28104946/mobious-syndrome-mr-findings
#1
Maskal Revanna Srinivas, Dhulappa Mudabasappagol Vaishali, Kadaba Shamachar Vedaraju, Bangalore Rangaswamy Nagaraj
Möbius syndrome is an extremely rare congenital disorder. We report a case of Möbius syndrome in a 2-year-old girl with bilateral convergent squint and left-sided facial weakness. The characteristic magnetic resonance imaging (MRI) findings of Möbius syndrome, which include absent bilateral abducens nerves and absent left facial nerve, were noted. In addition, there was absence of left anterior inferior cerebellar artery (AICA) and absence of bilateral facial colliculi. Clinical features, etiology, and imaging findings are discussed...
October 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28069788/proteinase-3-antineutrophil-cytoplasmic-antibody-positive-ulcerative-colitis-presenting-with-abducens-neuropathy
#2
Yuki Kirito, Daisuke Yamamoto, Tsuyoshi Uchiyama
A 72-year-old man with ulcerative colitis (UC) presented with complete left abducens nerve palsy. Although MRI showed no significant changes, cerebrospinal fluid analysis revealed pleocytosis and elevated protein and interleukin (IL)-6 levels. His serum proteinase 3-antineutrophil cytoplasmic antibody (PR3-ANCA) level was also elevated to 31.1 U/mL, but granulomatosis with polyangiitis was not observed. On the basis of the diagnosis of autoimmune cranial neuropathy, he was treated with steroid therapy. While tapering steroid therapy, his serum PR3-ANCA levels; cerebrospinal fluid findings, including IL-6 levels; and symptoms improved...
January 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28061881/moebius-sequence-a-multidisciplinary-clinical-approach
#3
Line Kjeldgaard Pedersen, Rikke Damkjær Maimburg, Jens Michael Hertz, Hans Gjørup, Thomas Klit Pedersen, Bjarne Møller-Madsen, John Rosendahl Østergaard
BACKGROUND: Moebius Sequence (MS) is a rare disorder defined by bilateral congenital paralysis of the abducens and facial nerves in combination with various odontological, craniofacial, ophthalmological and orthopaedic conditions. The aetiology is still unknown; but both genetic (de novo mutations) and vascular events in utero are reported. The purpose of present study was through a multidisciplinary clinical approach to examine children diagnosed with Moebius-like symptoms. Ten children underwent odontological, ophthalmological, obstetric, paediatric, orthopaedic, genetic, radiological and photographical evaluation...
January 6, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28035290/pathological-location-of-cranial-nerves-in-petroclival-lesions-how-to-avoid-their-injury-during-anterior-petrosal-approach
#4
Hamid Borghei-Razavi, Ryosuke Tomio, Seyed-Mohammad Fereshtehnejad, Shunsuke Shibao, Uta Schick, Masahiro Toda, Kazunari Yoshida, Takeshi Kawase
Objectives Numerous surgical approaches have been developed to access the petroclival region. The Kawase approach, through the middle fossa, is a well-described option for addressing cranial base lesions of the petroclival region. Our aim was to gather data about the variation of cranial nerve locations in diverse petroclival pathologies and clarify the most common pathologic variations confirmed during the anterior petrosal approach. Method A retrospective analysis was made of both videos and operative and histologic records of 40 petroclival tumors from January 2009 to September 2013 in which the Kawase approach was used...
February 2016: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28034818/clivus-metastasis-of-a-duodenal-adenocarcinoma-a-case-report-and-literature-review
#5
REVIEW
Simone E Dekker, Jay Wasman, Kevin K Yoo, Fernando Alonso, Robert W Tarr, Nicholas C Bambakidis, Kenneth Rodriguez
BACKGROUND: Clival metastases of adenocarcinomas are exceptionally rare tumors, especially when they arise from the small intestine. To our knowledge, here we present first report of a metastasis of a duodenal adenocarcinoma to the clivus. We also present a systematic review detailing metastasis to the clivus. METHODS: Studies were identified using the search terms clivus metastasis, skull base metastasis, and clivus in PubMed. We collected the following information: histopathology of the primary tumor, symptoms, history, treatment, and follow up...
December 26, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28009231/the-superior-fovea-triangle-approach-a-novel-safe-entry-zone-to-the-brainstem
#6
Kaan Yagmurlu, M Yashar S Kalani, Mark C Preul, Robert F Spetzler
The authors describe a safe entry zone, the superior fovea triangle, on the floor of the fourth ventricle for resection of deep dorsal pontine lesions at the level of the facial colliculus. Clinical data from a patient undergoing a suboccipital telovelar transsuperior fovea triangle approach to a deep pontine cavernous malformation were reviewed and supplemented with 6 formalin-fixed adult human brainstem and 2 silicone-injected adult human cadaveric heads using the fiber dissection technique to illustrate the utility of this novel safe entry zone...
December 23, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27994363/bilateral-abducens-and-facial-nerve-palsies-as-a-localizing-sign-due-to-reduction-in-intracranial-pressure-after-fourth-ventriculoperitoneal-shunting
#7
Boby Varkey Maramattom, Dilip Panikar
A trapped fourth ventricle often requires fourth ventriculoperitoneal shunting (4VP). Complications of this procedure include shunt blockage, infection, shunt migration, and overdrainage. Cranial nerve palsies are very rare after 4VP shunting and have been described with over drainage and brainstem distortion. We present an unusual case of bilateral abducens and facial nerve palsies after 4VP shunting after normalization of 4(th) ventricular parameters. Measurement of various brainstem angles presented us with a plausible hypothesis to explain the cranial nerve dysfunction...
October 2016: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/27965073/outcomes-of-endonasal-and-lateral-approaches-to-petroclival-meningiomas
#8
Maria Koutourousiou, Juan C Fernandez-Miranda, Francisco Vaz Guimaraes Filho, John R de Almeida, Eric W Wang, Carl H Snyderman, Paul A Gardner
OBJECT: Transpetrosal approaches for the treatment of petroclival meningiomas are often associated with substantial morbidity and long recovery. With the goal of early clinical improvement, we have employed less invasive surgical approaches for petroclival meningiomas. METHODS: We retrospectively reviewed 32 patients with petroclival meningiomas. Eleven patients (34.4%) were managed with lateral approaches (retrosigmoid or far lateral approach), 17 (53.1%) with anterior midline approaches (endoscopic endonasal approach [EEA]) and 4 (12...
December 10, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27939798/diplopia-and-sjogren-s-disease-a-rare-case-report
#9
Kaushalendra Tripathi, Richa Tripathi, Navid Seraji-Bozorgzad
Sjogren's syndrome is a chronic autoimmune disorder which affects the exocrine glands with lymphocytic infiltration, and occasionally involves central nervous system. It is usually rare and manifests as a lesion in the trigeminal nerve. Our case discusses the involvement of the oculomotor and abducens nerves along with the prevalence of such cases as seen on literature review. We describe a case of a middle aged woman who presented with ophthalmoplegic symptoms. The symptoms resolved in response to steroid therapy and serum analysis was positive for anti SSA antibodies...
January 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27928392/metastatic-papillary-thyroid-carcinoma-presenting-as-abducens-palsy-complicated-by-ocular-neuromyotonia
#10
Niloofar Yari, Angelina Espino Barros Palau, Michael L Morgan, Nicholas B Levine, Andrew G Lee
Papillary thyroid carcinoma (PTC) is a type of well-differentiated thyroid cancer that accounts for the majority of thyroid malignancies. The prognosis of PTC is very good and distant metastases are rare, especially to the skull base. The authors report the case of a 47-year-old woman with biopsy-proven PTC treated with surgery and radiation therapy who presented with headache and diplopia after 5 years and was found to have clivus and cavernous sinus metastasis. Following radiation therapy for her skull base and cavernous sinus lesion, she subsequently developed sixth nerve ocular neuromyotonia...
April 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27923754/successful-coil-embolization-of-pediatric-carotid-cavernous-fistula-due-to-ruptured-posttraumatic-giant-internal-carotid-artery-aneurysm
#11
Daisuke Wajima, Ichiro Nakagawa, Hun Soo Park, Shohei Yokoyama, Takeshi Wada, Kimihiko Kichikawa, Hiroyuki Nakase
BACKGROUND: The goal of the treatment of direct carotid cavernous fistula (CCF) is to occlude the arteriovenous shunt and to preserve the patency of the concerned internal carotid artery. However, for the ipsilateral posttraumatic fragile cerebrum, coil embolization plus parent artery occlusion for the high-flow direct CCF is better for the prevention of hyperperfusion syndrome and intracranial hemorrhage. We experienced such a case and managed it successfully. CASE DESCRIPTION: A 6-year-old boy had severe head trauma caused by being hit by a car...
December 5, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27916722/unique-diagnostic-features-and-surgical-strategy-for-intracranial-carotid-sympathetic-plexus-schwannoma-case-report-and-literature-review
#12
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 man presented with hypacusis and abducens nerve palsy. Radiologic 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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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 were analyzed. Patients with previous strabismus surgery or botulinum toxin injection were excluded. Primary outcome measures were esotropia in primary position and abduction deficit...
December 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
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