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Trochlear Nerve

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https://www.readbyqxmd.com/read/28534340/imaging-of-cranial-nerves-iii-iv-vi-in-congenital-cranial-dysinnervation-disorders
#1
REVIEW
Jae Hyoung Kim, Jeong Min Hwang
Congenital cranial dysinnervation disorders are a group of diseases caused by abnormal development of cranial nerve nuclei or their axonal connections, resulting in aberrant innervation of the ocular and facial musculature. Its diagnosis could be facilitated by the development of high resolution thin-section magnetic resonance imaging. The purpose of this review is to describe the method to visualize cranial nerves III, IV, and VI and to present the imaging findings of congenital cranial dysinnervation disorders including congenital oculomotor nerve palsy, congenital trochlear nerve palsy, Duane retraction syndrome, Möbius syndrome, congenital fibrosis of the extraocular muscles, synergistic divergence, and synergistic convergence...
May 12, 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28494780/metastatic-non-muscle-invasive-bladder-cancer-with-meningeal-carcinomatosis-case-report-of-an-unexpected-response
#2
Diego Teyssonneau, Amaury Daste, Vincent Dousset, Jean-Luc Hoepffner, Alain Ravaud, Marine Gross-Goupil
BACKGROUND: Non-muscle invasive bladder cancer (NMIBC) is usually treated with local therapy including transurethral resection of the bladder tumor and intravesical therapy depending on the stage of the tumor. NMIBC is a rarely a metastatic diseases with lymph node invasion in less of 10%. In the other hand meningeal carcinomatosis is a rare location for metastases with extremely poor outcomes. We described a case report of a patient presenting a metastatic disease to bones and meninges, several years after the treatment of NMIBC, which had been in complete response (CR) for 4 years after chemotherapy treatment...
May 11, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28437527/ocular-motor-nerve-development-in-the-presence-and-absence-of-extraocular-muscle
#3
Suzanne M Michalak, Mary C Whitman, Jong G Park, Max A Tischfield, Elaine H Nguyen, Elizabeth C Engle
Purpose: To spatially and temporally define ocular motor nerve development in the presence and absence of extraocular muscles (EOMs). Methods: Myf5cre mice, which in the homozygous state lack EOMs, were crossed to an IslMN:GFP reporter line to fluorescently label motor neuron cell bodies and axons. Embryonic day (E) 11.5 to E15.5 wild-type and Myf5cre/cre:IslMN:GFP whole mount embryos and dissected orbits were imaged by confocal microscopy to visualize the developing oculomotor, trochlear, and abducens nerves in the presence and absence of EOMs...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28434965/trochlear-schwannoma-presenting-with-isolated-trigeminal-neuralgia
#4
Cody L Nesvick, Avital Perry, Christopher S Graffeo, Aditya Raghunathan, Julie E Hammack, Jamie J Van Gompel
BACKGROUND: Schwannomas arising from the cranial nerves controlling extraocular eye movements are very rare and usually present with some degree of diplopia. CASE DESCRIPTION: We report a 50-year-old woman who presented with isolated left-sided trigeminal neuralgia of six months' duration. Imaging demonstrated a homogeneously enhancing mass in the left ambient cistern, and the patient was taken to the operating room for resection. A retrosigmoid approach was used, and the mass was directly visualized arising from the trochlear nerve and compressing on the dorsal root entry zone of the trigeminal nerve...
April 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28364580/end-organ-radiographic-manifestations-of-cranial-neuropathies-a-concise-review
#5
Vijay A Patel, Thomas T Zacharia, David Goldenberg, Johnathan D McGinn
BACKGROUND: Cranial neuropathies are a spectrum of disorders associated with dysfunction of one or more of the twelve cranial nerves and the subsequent anatomic structures they innervate. OBJECTIVE: The purpose of this article is to review radiographic imaging findings of end-organ aberrations secondary to cranial neuropathies. METHOD: All articles related to cranial neuropathies were retrieved through the PubMed MEDLINE NCBI database from January 1, 1991 to August 31, 2014...
March 23, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28346224/mutant-%C3%AE-2-chimaerin-signals-via-bidirectional-ephrin-pathways-in-duane-retraction-syndrome
#6
Alicia A Nugent, Jong G Park, Yan Wei, Alan P Tenney, Nicole M Gilette, Michelle M DeLisle, Wai-Man Chan, Long Cheng, Elizabeth C Engle
Duane retraction syndrome (DRS) is the most common form of congenital paralytic strabismus in humans and can result from α2-chimaerin (CHN1) missense mutations. We report a knockin α2-chimaerin mouse (Chn1KI/KI) that models DRS. Whole embryo imaging of Chn1KI/KI mice revealed stalled abducens nerve growth and selective trochlear and first cervical spinal nerve guidance abnormalities. Stalled abducens nerve bundles did not reach the orbit, resulting in secondary aberrant misinnervation of the lateral rectus muscle by the oculomotor nerve...
May 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28302606/trochlear-groove-and-trochlear-cistern-useful-anatomic-landmarks-for-identifying-the-tentorial-segment-of-cranial-nerve-iv-on-mri
#7
P M Bunch, H R Kelly, D A Zander, H D Curtin
BACKGROUND AND PURPOSE: The trochlear groove and trochlear cistern are anatomic landmarks closely associated with the tentorial segment of cranial nerve IV. The purposes of this study were to describe the MR imaging appearances of the trochlear groove and trochlear cistern and to test our hypothesis that knowledge of these anatomic landmarks facilitates identification of cranial nerve IV in routine clinical practice. MATERIALS AND METHODS: For this retrospective study, consecutive MR imaging examinations of the sinuses performed in 25 patients (50 sides) at our institution were reviewed...
May 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28301858/anti-nerve-growth-factor-therapy-increases-spontaneous-day-night-activity-in-mice-with-orthopedic-surgery-induced-pain
#8
Lisa A Majuta, Jean-Marc G Guedon, Stefanie A T Mitchell, Michael H Ossipov, Patrick W Mantyh
Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are 2 of the most common and successful surgical interventions to relieve osteoarthritis pain. Control of postoperative pain is critical for patients to fully participate in the required physical therapy which is the most influential factor in effective postoperative knee rehabilitation. Currently, opiates are a mainstay for managing postoperative orthopedic surgery pain including TKA or THA pain. Recently, issues including efficacy, dependence, overdose, and death from opiates have made clinicians and researchers more critical of use of opioids for treating nonmalignant skeletal pain...
April 2017: Pain
https://www.readbyqxmd.com/read/28296553/a-comparative-study-of-oculomotor-trochlear-and-abducens-nerves-in-arabian-foals
#9
COMPARATIVE STUDY
D Bolat, D Yıldız, S Bahar, S Yürüker, F Kaymaz, C Ilgın, E Ü Bozkurt, S Karahan, S S Sabancı
We investigated the microscopic structure of transverse sections of the oculomotor, trochlear and abducens nerves of Arabian foals using stereological methods. Bilateral nerve pairs from 2-month-old female Arabian foals were analyzed. The tissues were embedded in plastic blocks, then 1 µm thick sections were cut and stained with osmium tetroxide and methylene blue-azure II. Stereology was performed using light microscopy. Morphometry showed that the right and left pairs of nerves were similar. The transverse sectional areas of the oculomotor, trochlear and abducens nerves were 1...
2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28277775/trochlear-nerve-palsy
#10
Paul Morillon, Fion Bremner
No abstract text is available yet for this article.
March 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28215457/synchronous-ipsilateral-cavernous-malformations-of-the-trochlear-nerve
#11
Christopher S Graffeo, William R Copeland, Perkins Mukunyadzi, Ali F Krisht
BACKGROUND: Cranial nerve cavernous malformations (CM) are rare benign congenital vascular anomalies, with approximately 44 preceding cases in the literature. We report the fifth case of trochlear CM, as well as the first instance of two discrete CM occurring simultaneously along the same cranial nerve. METHODS: Case report. RESULTS: A fifty-seven year-old man presented with several years of diplopia; physical examination identified a complete left trochlear nerve paralysis...
February 16, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28035290/pathological-location-of-cranial-nerves-in-petroclival-lesions-how-to-avoid-their-injury-during-anterior-petrosal-approach
#12
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/28009632/anti-nerve-growth-factor-therapy-increases-spontaneous-day-night-activity-in-mice-with-orthopedic-surgery-induced-pain
#13
Lisa A Majuta, Jean-Marc G Guedon, Stefanie A T Mitchell, Michael H Ossipov, Patrick W Mantyh
Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are two of the most common and successful surgical interventions to relieve osteoarthritis pain. Control of postoperative pain is critical for patients to fully participate in the required physical therapy which is the most influential factor in effective postoperative knee rehabilitation. Currently opiates are a mainstay for managing postoperative orthopedic surgery pain including TKA/THA pain. Recently, issues including efficacy, dependence, overdose and death from opiates have made clinicians and researchers more critical of use of opioids for treating non-malignant skeletal pain...
December 15, 2016: Pain
https://www.readbyqxmd.com/read/27987508/-analysis-of-anterolateral-approach-and-lateral-approach-for-the-treatment-of-coronal-shear-fracture-of-the-distal-humeral
#14
Y Li, Y J Cha, T Li, M Q Gong, X Y Jiang
OBJECTIVE: To treat the coronal shear fracture of the distal humeral during open reduction and internal fixation by anterolateral approach and lateral approach, and to analyze the advantage and disadvantage of each approach. METHODS: From September 2006 to July 2014, 10 patients with coronal fracture of the distal humeral were analyzed, who were all treated with Open Reduction and Internal Fixation (ORIF), 5 with anterolateral approach (group A) and 5 with lateral approach (group B)...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27984493/anti-nerve-growth-factor-therapy-increases-spontaneous-day-night-activity-in-mice-with-orthopedic-surgery-induced-pain
#15
Lisa A Majuta, Jean-Marc G Guedon, Stefanie A T Mitchell, Michael H Ossipov, Patrick W Mantyh
Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are two of the most common and successful surgical interventions to relieve osteoarthritis pain. Control of postoperative pain is critical for patients to fully participate in the required physical therapy which is the most influential factor in effective postoperative knee rehabilitation. Currently opiates are a mainstay for managing postoperative orthopedic surgery pain including TKA/THA pain. Recently, issues including efficacy, dependence, overdose and death from opiates have made clinicians and researchers more critical of use of opioids for treating non-malignant skeletal pain...
December 15, 2016: Pain
https://www.readbyqxmd.com/read/27928382/isolated-fourth-nerve-palsy-in-tuberculous-meningitis
#16
María García-Zamora, Hortensia Sánchez-Tocino, Ana Villanueva-Gómez, José Miguel Angles-Deza, Elena Pérez-Gutierrez
Tuberculous meningitis is a type of subacute meningitis and like other intracranial processes can compromise ocular motor nerves, causing palsies. Trochlear nerve is an unusual isolated manifestation in this type of pathology. The authors report a 5-year-old boy presented in their clinic with a trochlear nerve palsy as unique neurological manifestation of tuberculous meningitis. Treatment with complete anti-tuberculous therapy and botulinum A toxin was needed to get the complete resolution of the nerve palsy...
February 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27876660/total-resection-of-brainstem-extension-of-tentorial-schwannoma-using-an-occipital-transtentorial-approach
#17
Liu Xinrui, Yuichi Sato, Mitsuru Dan, Hiroki Kuroda, Toshihiro Kumabe
BACKGROUND: Approximately 60 cases of schwannoma unrelated to the cranial nerve have been reported, and only 12 arose from the tentorium. We present a case of tentorial schwannoma extending into the pons and midbrain without cranial nerve involvement, which was almost totally resected with an occipital transtentorial approach. CASE DESCRIPTION: A 37-year-old man was admitted to our institution with memory disturbance beginning 2 years ago and gait disturbance from 1 year ago...
February 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27851717/central-trochlear-palsy-report-of-two-patients-with-ipsilesional-palsy-and-review-of-the-literature
#18
Seong-Hae Jeong, Sung-Hee Kim, Seung-Han Lee, Seong-Ho Park, Hyo-Jung Kim, Ji-Soo Kim
BACKGROUND: The trochlear (fourth) nerve is the only cranial nerve that decussates before emerging from the posterior aspect of the brainstem. Lesions involving the trochlear nucleus or fascicles mostly give rise to contralesional superior oblique palsy (SOP). METHODS: We report 2 patients with SOP on the side of intraaxial lesions with a literature review on central trochlear palsy. RESULTS: The lesions are more commonly located posterior to the cerebral aqueduct in patients with ipsilesional SOP than in those with contralesional SOP...
December 2016: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/27715436/midline-and-off-midline-infratentorial-supracerebellar-approaches-to-the-pineal-gland
#19
Satoshi Matsuo, Serhat Baydin, Abuzer Güngör, Koichi Miki, Noritaka Komune, Ryota Kurogi, Koji Iihara, Albert L Rhoton
OBJECTIVE A common approach to lesions of the pineal region is along the midline below the torcula. However, reports of how shifting the approach off midline affects the surgical exposure and relationships between the tributaries of the vein of Galen are limited. The purpose of this study is to examine the microsurgical and endoscopic anatomy of the pineal region as seen through the supracerebellar infratentorial approaches, including midline, paramedian, lateral, and far-lateral routes. METHODS The quadrigeminal cisterns of 8 formalin-fixed adult cadaveric heads were dissected and examined with the aid of a surgical microscope and straight endoscope...
October 7, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27607129/trochlear-nerve-schwannoma-with-repeated-intratumoral-hemorrhage
#20
Pengfei Liu, Yuhai Bao, Wenchuan Zhang
Trochlear nerve schwannoma is extremely rare, with only 35 pathologically confirmed patients being reported in the literature. Here, the authors report a patient of trochlear nerve schwannoma in the prepontine cistern manifesting as facial pain and double vision and presenting the image characteristics of repeated intratumoral hemorrhage, which has never been reported in the literature. Total tumor along with a portion of the trochlear nerve was removed by using a retrosigmoid approach. Facial pain disappeared after operation, and the diplopia remained...
September 2016: Journal of Craniofacial Surgery
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