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Conus medullaris

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https://www.readbyqxmd.com/read/27916035/-microsurgical-management-and-outcomes-of-intramedullary-spinal-arteriovenous-malformations-a-report-of-14-cases
#1
L Zhang, W Q Jia, J Yang
Objective: To investigate the clinical features, microsurgical management and outcomes of intramedullary spinal arteriovenous malformations (AVM). Methods: A series of 14 patients (10 male, 4 female; mean age (39.1±17.2) years ranged from 16 to 72 years) with intramedullary spinal AVM who underwent microsurgical treatment from November 2008 to April 2015 in Department of Neurosurgery at Beijing Tiantan Hospital were retrospectively reviewed. The location of the AVM included cervical (n=6), thoracic (n=3), cervicothoracic (n=2), and conus medullaris (n=3)...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27911245/use-of-magnetic-resonance-imaging-to-detect-occult-spinal-dysraphism-in-infants
#2
Brent R O'Neill, Danielle Gallegos, Alex Herron, Claire Palmer, Nicholas V Stence, Todd C Hankinson, C Corbett Wilkinson, Michael H Handler
OBJECTIVE Cutaneous stigmata or congenital anomalies often prompt screening for occult spinal dysraphism (OSD) in asymptomatic infants. While a number of studies have examined the results of ultrasonography (US) screening, less is known about the findings when MRI is used as the primary imaging modality. The object of this study was to assess the results of MRI screening for OSD in infants. METHODS The authors undertook a retrospective review of all infants who had undergone MRI of the lumbar spine to screen for OSD over a 6-year period (September 2006-September 2012)...
December 2, 2016: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27906952/conus-medullaris-infarction-after-a-right-l4-transforaminal-epidural-steroid-injection-using-dexamethasone
#3
Christopher G Gharibo, Michael Fakhry, Sudhir Diwan, Alan D Kaye
BACKGROUND: For decades, epidural steroid injections have been an effective tool in the management of many pain related conditions, including lumbar radiculopathy. Transforaminal epidural steroid injections in particular have been reported to potentially result in central nervous system infarctions which have not been reported with interlaminar epidural steroid injections, while providing comparable efficacy. This rare, catastrophic complication has been attributed by some authors to be due to vascular injury secondary to vasospasm, thrombus formation, dissection, as well as concerns with placing the needle at the so-called "safe triangle...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27884878/comparison-of-3-different-types-of-spinal-arteriovenous-shunts-below-the-conus-in-clinical-presentation-radiologic-findings-and-outcomes
#4
T Hong, J E Park, F Ling, K G terBrugge, M Tymianski, H Q Zhang, T Krings
BACKGROUND AND PURPOSE: Spinal arteriovenous shunts below the conus constitute 3 types of lesions, which have previously been mainly described in case reports, given their rarity, and are sometimes misdiagnosed. The purpose of this study was to describe the features of each type and compare these types as to epidemiologic features, clinical and radiologic presentations, treatment, and outcomes in a consecutive series of 48 cases. MATERIALS AND METHODS: The prospectively collected data bases of 2 referral centers for spinal vascular lesions were retrospectively reviewed...
November 24, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27870788/prenatal-ultrasound-evaluation-of-the-position-of-conus-medullaris-for-the-diagnosis-of-tethered-cord-syndrome
#5
Shao-Zheng He, Guo-Rong Lv, Shun-Lan Liu, Jun-Xian Ruan
To determine the conus distance between the end of the conus medullaris and the distal end of the last vertebral body in healthy fetuses with various gestational ages using ultrasonography for its diagnostic value in tethered cord syndrome (TCS). This retrospective study included 540 healthy and 8 autopsy-confirmed TCS fetuses. Ultrasonographic measurement of the conus distance was performed when the fetus was in a prone position within the spine in the near field at 14 to 41 weeks of gestational age. Linear correlation analysis was performed to analyze the relationship between the conus distance and the gestational age, biparietal diameter, femur length, head circumference, and abdominal circumference...
December 2016: Ultrasound Quarterly
https://www.readbyqxmd.com/read/27867442/the-slowly-enlarging-ventriculus-terminalis
#6
Joel Woodley-Cook, Magdalena Konieczny, Julian Spears
BACKGROUND: A cerebral spinal fluid (CSF) cavity within the conus medullaris has been described by the term ventriculus terminalis (VT) or the fifth ventricle. The finding of a VT on MRI imaging of the lumbar spine is often incidental but may be found in patients with low back pain or neuromuscular deficits. These lesions, when identified, are thought to regress or remain stable in terms of size, although some have been described to enlarge in the presence of post-traumatic meningeal hemorrhages or deformities of the vertebral canal...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27856020/the-effect-of-bedside-ultrasonographic-skin-marking-on-infant-lumbar-puncture-success-a%C3%A2-randomized-controlled-trial
#7
Jeffrey T Neal, Summer L Kaplan, Ashley L Woodford, Krisha Desai, Joseph J Zorc, Aaron E Chen
STUDY OBJECTIVE: Lumbar puncture is a commonly performed procedure, although previous studies have documented low rates of successful completion in infants. Ultrasonography can visualize the anatomic landmarks for lumbar puncture and has been shown in some studies to reduce the failure rate of lumbar puncture in adults. We seek to determine whether ultrasonography assisted site marking increases success for infant lumbar punctures. METHODS: This was a prospective, randomized, controlled trial in an academic pediatric emergency department (ED)...
November 14, 2016: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27843691/co-existing-spinal-intradural-ependymal-cyst-and-sacral-tarlov-cyst-in-adult-onset-tethered-cord-syndrome-with-syringomyelia-case-report-and-literature-review
#8
Hamid H Rai, Muhammad F Khan, Syed Ather Enam, Imtiaz Hashmi
BACKGROUND: Synchronous spinal intradural ependymal cysts and sacral Tarlov cysts in adult onset tethered cord syndrome are extremely rare. CASE DESCRIPTION: A 23-year-old male presented with back pain radiating into both lower extremities, accompanied by acute onset of gait difficulty and sphincter dysfunction. Magnetic resonance imaging identified a low lying conus medullaris, syringomyelia with septations extending from T12 to S1, a tethered cord, and a thickened filum terminale with a sacral Tarlov cyst...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27794580/think-of-the-conus-medullaris-at-the-time-of-diagnosis-of-fetal-sacral-agenesis
#9
Nicolas Mottet, Jelena Martinovic, Claire Baeza, Fabien Guimiot, Jean-Philippe Bault, Marie Cécile Aubry, Didier Riethmuller, Michel Zerah, Celia Cretolle, Alexandra Benachi
BACKGROUND: There is no precise prenatal indicator to refine an accurate prognosis in case of sacral agenesis and to define the diagnostic approach and outcome criteria in case of fetal sacral agenesis using 3 characteristics of the conus medullaris (CM): its position, its appearance, and associated spinal abnormalities. METHODS: Ten cases of prenatally diagnosed sacral agenesis were included between 1995 and 2014 after collating ultrasound findings and prenatal computed tomography data...
October 29, 2016: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/27790529/successful-pregnancy-outcome-in-an-operated-case-of-lipomeningomyocele-a-rare-case
#10
Vineet Vashistha Mishra, Sakshi Nanda, Rohina Aggarwal, Tanvir
Lipomeningomyocele is one of the types of occult spinal dysraphism associated with tethered cord syndrome, which is characterised by neurodeficit symptomatology due to stretch- induced functional disorder of the spinal cord with its caudal part attached by an in elastic tissue. There is stretching of conus medullaris and nerve roots due to disproportionate growth between vertebral column and spinal cord, resulting in various neurological deficits. Its incidence is approximately 1 in 4000 births in the USA, with a slightly higher female preponderance, although its true incidence is not known...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27765739/limited-dorsal-myeloschisis-and-congenital-dermal-sinus-comparison-of-clinical-and-mr-imaging-features
#11
S M Lee, J-E Cheon, Y H Choi, I-O Kim, W S Kim, H-H Cho, J Y Lee, K-C Wang
BACKGROUND AND PURPOSE: While limited dorsal myeloschisis is a distinctive form of spinal dysraphism, it may be confused with congenital dermal sinus. The aim of this study was to describe clinical and MR imaging findings of limited dorsal myeloschisis that can distinguish it from congenital dermal sinus. MATERIALS AND METHODS: We retrospectively reviewed the clinical and MR imaging findings of 12 patients with limited dorsal myeloschisis and 10 patients with congenital dermal sinus...
October 20, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27762521/conus-medullaris-injury-following-spinal-anaesthesia
#12
K Mugundhan, Rajesh Shankar Iyer
No abstract text is available yet for this article.
September 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27731939/radiographic-and-magnetic-resonance-imaging-identification-of-thoracolumbar-spine-variants-with-implications-for-the-positioning-of-the-conus-medullaris-in-rhesus-macaques
#13
Marcus Ohlsson, Jaime H Nieto, Kari L Christe, J Pablo Villablanca, Leif A Havton
The anatomy of the vertebral column in mammals may differ between species and between subjects of the same species, especially with regards to the composition of the thoracolumbar spine. We investigated, using several non-invasive imaging techniques, the thoracolumbar spine of a total of 44 adult rhesus macaques of both genders. Radiographic examination of the vertebral column showed a predominant spine phenotype with 12 rib-bearing thoracic vertebrae and 7 lumbar vertebrae without ribs in 82% of subjects, whereas a subset of subjects demonstrated 13 rib-bearing thoracic vertebrae and 6 lumbar vertebrae without ribs...
October 12, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27721843/painful-legs-and-moving-toes-syndrome-in-a-16-year-old-girl
#14
Seung Soo Kim, Yong Seung Hwang, Young Chang Kim
Painful legs and moving toes (PLMT) syndrome is characterized by spontaneous movements of the digits and pain in one or both lower extremities. Of the reported cases, a majority of the patients was female, and the mean age of onset was 58 years. Only one pediatric case has been reported so far. Herein, we report the first adolescent case of PLMT in Korea. A 16-year-old girl complained of tingling pain in the left leg and involuntary movement of the ipsilateral great toe one month after a second untethering surgery...
September 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/27695570/ganglioglioma-of-conus-medullaris-in-a-patient-of-neurofibromatosis-type-1-a-novel-association
#15
Ilangovan Vijay Sundar, Manish Jaiswal, Devendra Purohit, R S Mittal
Ganglioglioma of the conus region is quite rare with only 12 reported cases. Ganglioglioma shares biologic features with neurofibromatosis leading to suggestions that the co-existence of the two diseases may be more than coincidental. We report a case of ganglioglioma of the conus medullaris in a patient of neurofibromatosis and explore the possible association of the two diseases.
October 2016: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/27695242/cystic-dilation-of-the-ventriculus-terminalis
#16
Masahiro Kawanishi, Hidekazu Tanaka, Kunio Yokoyama, Makoto Yamada
The ventriculus terminalis (VT) is a virtual cavity of the conus medullaris that appears during embryonic life. We presented a case with the cystic dilation of the ventriculus terminalis (CDVT) in a symptomatic patient. A 66-year-old female suffered from disturbance while walking evolving for the past 2 years. An MR image revealed a cystic dilatation of ventriculus terminalis. The patient experienced marked improvement of lower extremity strength by a fenestration of cyst and cyst-subarachnoid shunt. Treatment for asymptomatic patients seems to be the best conducted conservatively, whereas patients with focal neurological deficits seem to be best handled surgically...
October 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/27671879/genetic-characterization-of-a-multifocal-ganglioglioma-originating-within-the-spinal-cord
#17
Joshua L Wang, Christopher S Hong, Jose Otero, Vinay K Puduvalli, J Bradley Elder
BACKGROUND: Gangliogliomas are rare, low-grade intra-axial tumors that exhibit both neuronal and glial components. Although the vast majority present as an intracranial lesion, a rare subset exist as isolated lesions of the spinal cord. Gangliogliomas have also been shown to harbor mutations in the p53 tumor suppressor gene and BRAF oncogene. Previous studies in ganglioglioma have correlated p53 mutations with histologic transformation and BRAF mutations with worse prognosis. CASE DESCRIPTION: In this report, we describe a 35-year-old female who presented with multifocal ganglioglioma, involving both the conus medullaris and filum terminale...
September 23, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27641261/upper-lumbar-mature-cystic-teratoma-a-case-report
#18
Awder Khazendar, Hemin M Hama Ameen, Nzar I Jabbar, Seerwan O Hasan, Talar S Ahmed, Alaa A Ali
BACKGROUND: Intradural extramedullary spinal teratoma (IEST) is a rare condition in adults, with a male predominance. It is commonly associated with spinal dysraphism, lumbar puncture, and previous spinal surgery. This case is a 37-year-old male diagnosed with a mature cystic IEST without dysraphism or previous surgical interventions. CASE DESCRIPTION: The patient's symptoms included a lumbar backache that progressed to the toes, as well as the anterior region of both thighs...
December 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27597917/a-case-of-congenital-malignant-spinal-cord-glioma-as-a-cause-of-congenital-ascites-in-a-neonate
#19
Bianca Karber, Lenore Omesi, Sunny Chang, Andrew Handel, Monica Hegedus, Echezona Maduekwe
Congenital ascites is rare, but when it occurs, urinary ascites secondary to posterior urethral valve obstruction is the most common, and tumors are the least. Among the tumors in the pediatric population, the central nervous system tumors are common, but spinal cord tumors are rare. We describe a very rare case of congenital malignant spinal cord glioma presenting as isolated congenital ascites secondary to neurogenic bladder. A female infant was diagnosed sonographically with isolated congenital ascites at 40 weeks' gestational age, with uneventful development prior to 40 weeks' gestational age...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27562404/the-influence-of-age-on-positions-of-the-conus-medullaris-tuffier-s-line-dural-sac-and-sacrococcygeal-membrane-in-infants-children-adolescents-and-young-adults
#20
Ji-Yun Jung, Eun-Hee Kim, In-Kyung Song, Ji-Hyun Lee, Hee-Soo Kim, Jin-Tae Kim
BACKGROUND: The purpose of this study was to analyze the distances between the conus medullaris and the Tuffier's line, and between the dural sac and the sacrococcygeal membrane (SCM) in the same pediatric population. METHODS: Spinal magnetic resonance images and simple X-ray images of 350 patients aged from 1 month to 20 years were reviewed. Positions of the conus medullaris, Tuffier's line, the dural sac, and the SCM were identified. Each position was recorded in relation to the corresponding vertebral body segments...
December 2016: Paediatric Anaesthesia
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