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https://www.readbyqxmd.com/read/29780233/spinal-meningeal-melanocytoma-in-a-5-year-old-child-a-case-report-and-review-of-literature
#1
Ahmed M Salah El-Din, Hashem M Aboul-Ela, Mohamed F Alsawy, Ahmed Koheil, Ahmed H Ashry
Background: Meningeal melanocytoma is considered a rare lesion arising from leptomeningeal melanocytes. Nearly two thirds of meningeal melanocytomas were reported in the intracranial compartment and the remaining one third in the spine. Spinal melanocytomas can be extradural or intradural, with extradural variant being more common, and the majority of cases have been single reports. Methods: A 5-year-old male presented with a 4-month history of non-radiating low back pain persistent at rest, with otherwise non-remarkable medical history...
2018: The Egyptian journal of neurology, psychiatry and neurosurgery
https://www.readbyqxmd.com/read/29774200/thickening-ligamentum-flavum-mimicking-tumor-in-the-epidural-space-of-the-cervical-spine
#2
Sung Hyun Bae, Dong Wuk Son, O Ik Kwon, Su Hun Lee, Jun Seok Lee, Geun Sung Song
In patients with tumors and spinal cord lesions, inflammation and tissue infection can result in mass effect detection on imaging. As a result, surgical biopsy procedures are often performed on the lesions. We report a rare case in which the thickening ligamentum flavum (LF) appeared to be a tumor in the epidural space of the cervical spine based on imaging findings. A 52-year-old man visited our outpatient clinic with severe shoulder pain and radicular pain in his right arm that had developed gradually after a traffic accident two months earlier...
April 2018: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29774198/a-rare-cause-of-thoracic-spinal-cord-compression-by-multiple-large-tarlov-cysts
#3
Ahmed-Salem Kleib, Sidi-Mohamed Salihy, Hussein Hamdi, Romain Carron, Outouma Soumaré
Spinal extradural arachnoid cyst (SEAC) is a rare cause of spinal cord compression. Bifocal location of thoracic and sacral SEACs is rarely reported in the literature. We report a case of thoracic spinal cord compression by SEAC associated with asymptomatic multiple sacral Tarlov cysts (TC). The surgical management and postoperative outcome of the patient are discussed. A 34-year-old woman was referred to the hospital for acute thoracic pain with a history of chronic long-standing back pain. She complained of walking difficulties...
April 2018: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29770287/ultra-early-optic-nerve-decompression-for-the-resection-of-anterior-clinoidal-meningioma
#4
Soichi Oya, Toru Matsui
Improvement in vision is one of the main goals of surgery for anterior clinoidal meningiomas with visual deficits. Early optic nerve decompression surgery has been advocated in previous studies to achieve the best visual outcome. Through this video, the authors describe their surgical techniques to decompress the optic nerve at the very early stage of surgery. A 35-year-old patient presented with subjective blurry vision in the right eye over the last 8 months. Magnetic resonance images showed a 3.2-cm meningioma arising at the right anterior clinoid...
February 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29758368/infections-following-cranial-neurosurgery-prospective-cohort-of-103-episodes-treated-according-to-a-standardized-algorithm
#5
Nora Renz, Burcin Özdirik, Tobias Finger, Peter Vajkoczy, Andrej Trampuz
OBJECTIVE: The optimal surgical and antimicrobial treatment for intracranial infections following neurosurgery is unknown. We investigated the clinical, laboratory and microbiological characteristics of intracranial infections following neurosurgery. In addition, treatment outcome in patients treated according to a standardized algorithm was evaluated. METHODS: Consecutive patients with extradural, intradural and device-related infections following cranial neurosurgery were prospectively included...
May 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29753644/extradural-anterior-clinoidectomy-in-the-management-of-parasellar-meningiomas-analysis-of-13-years-of-experience-and-literature-review
#6
Laura Salgado López, Fernando Muñoz Hernández, Carlos Asencio Cortés, Pere Tresserras Ribó, María Jesús Álvarez Holzapfel, Joan Molet Teixidó
BACKGROUND AND AIM: The extradural anterior clinoidectomy (EAC) is a key microsurgical technique that facilitates the resection of tumors located in the parasellar region. There is currently no consensus regarding the execution of the procedure via extradural or intradural nor scientific evidence that supports its routine use. The purpose of this article is to expose our experience in performing EAC as part of the management of the parasellar meningiomas. MATERIALS AND METHODS: A retrospective analysis of the EAC for parasellar meningioma resection performed in our center between 2003 and 2015 was done...
May 9, 2018: Neurocirugía
https://www.readbyqxmd.com/read/29750275/endoscopic-endonasal-transclival-approach-to-the-ventral-brainstem-anatomic-study-of-the-safe-entry-zones-combining-fiber-dissection-technique-with-7-tesla-magnetic-resonance-guided-neuronavigation
#7
Alessandro Weiss, Paolo Perrini, Matteo De Notaris, Guadalupe Soria, Alarcon Carlos, Maura Castagna, Lodovico Lutzemberger, Orazio Santo Santonocito, Giuseppe Catapano, Amin Kassam, Alberto Prats Galino
BACKGROUND: Treatment of intrinsic lesions of the ventral brainstem is a surgical challenge that requires complex skull base antero- and posterolateral approaches. More recently, endoscopic endonasal transclival approach (EETA) has been reported in the treatment of selected ventral brainstem lesions. OBJECTIVE: In this study we explored the endoscopic ventral brainstem anatomy with the aim to describe the degree of exposure of the ventral safe entry zones. In addition, we used a newly developed method combining traditional white matter dissection with high-resolution 7T magnetic resonance imaging (MRI) of the same specimen coregistered using a neuronavigation system...
May 10, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29736238/conservative-management-of-extradural-hematoma-a-report-of-sixty-two-cases
#8
A Rahim H Zwayed, Brandon Lucke-Wold
Background: Extradural hematomas (EDH) are considered life threatening in that the risk for brain herniation is significant. The current accepted understanding within the literature is to treat EDH via surgical evacuation of the hematoma. Cases: In this case-series we report 62 cases of EDH managed conservatively without surgical intervention. Inclusion criteria were: Glasgow comma scale score 13-15, extradural hematoma confirmed by CT being less than 40 mm, less than 6 mm of midline shift, and no other surgical lesions present...
June 2018: Neurology and Clinical Neuroscience
https://www.readbyqxmd.com/read/29730052/thoracic-spine-intra-and-extradural-dumbbell-shaped-meningioma-case-report-and-extensive-review-of-the-literature-with-21-cases
#9
H N'da, C Dauleac, A Toquart, M Afathi, D Meyronet, C Barrey
INTRODUCTION: Spinal dumbbell-shaped meningioma is a rare condition usually mistaken preoperatively for schwannoma. The present study reported a case of dumbbell-shaped meningioma, with an extensive review of literature. METHODS: A documented case of thoracic spine dumbbell-shaped meningioma is reported, followed by an extensive review of the literature to analyze epidemiological features, pathogenesis, histopathological diagnosis, location, Eden classification, surgical treatment and outcome in such tumors...
May 2, 2018: Neuro-Chirurgie
https://www.readbyqxmd.com/read/29709844/lumbar-pseudomeningocele-presenting-as-decerebrate-rigidity-a-rare-case-entity
#10
Satish Rudrappa, Ramachandran Govindasamy, Venkata Ramakrishna Tukkapuram, Swaroop Gopal
INTRODUCTION: Spinal pseudomeningoceles are extradural collections of cerebrospinal fluid that result following a breach in the dural-arachnoid layer and is reported as one of the complications of lumbar disc surgery. Although they are often self subsiding and asymptomatic, they may occasionally cause low-back pain, headaches, and even nerve root entrapment. The purpose of this case report is to present an unreported presentation of pseudomeningocele PRESENTATION OF CASE: A 34 year obese male presented one month post lumbar discectomy with symptoms suggestive of raised intra cranial pressure presenting as repetitive decerebrate rigidity and altered sensorium lasting for few minutes when there is pressure on the pseudomeningocele sac and subsiding with change in position of the patient...
April 22, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29691597/preoperative-digital-subtraction-angiography-in-incidental-unruptured-intracranial-aneurysms-how-much-is-too-much
#11
Moriz Herzberg, Robert Forbrig, Christian Schichor, Hartmut Brückmann, Franziska Dorn
PURPOSE: Digital subtraction angiography (DSA) is deemed necessary to precisely visualize intracranial aneurysms and define individual treatment strategies. In patients with unruptured intracranial aneurysms (UIA) who were diagnosed by MRI, a four-vessel DSA is usually performed to detect additional aneurysms. This study aimed to evaluate whether the evaluation of all vessels beyond the aneurysm-harboring artery is really necessary. MATERIAL AND METHODS: Patients with an UIA that was detected on MRA (TOF/ceMRA) were prospectively included...
April 24, 2018: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29682431/transcavernous-approach-to-the-basilar-apex-a-cadaveric-prosection
#12
Jonathan N Sellin, Visish M Srinivasan, Jovany C Navarro, Hunt H Batjer, Harry Van Loveren, Edward A Duckworth
The transcavernous approach to the basilar artery, as initially described by Dolenc, is one of the most common and elegant approaches to the region. It affords a generous working and viewing angle, but it can be technically challenging and requires attention to detail at each step. We investigate this approach in this report via a cadaveric prosection with a focus on the value of each of the component steps in improving surgical view and exposure. The transcavernous approach steps are divided into extradural stages: orbitozygomatic osteotomy (a modern adjunct to Dolenc's original description), drilling of the lesser sphenoid wing, and anterior clinoidectomy; and intradural stages: wide splitting of the Sylvian fissure, unroofing of the oculomotor and trochlear nerves, and posterior clinoidectomy...
February 14, 2018: Curēus
https://www.readbyqxmd.com/read/29682063/a-rare-case-of-spinal-extradural-arachnoid-cyst-with-cord-compression
#13
Lee Chun Lin, R Jason
Spinal extradural arachnoid cysts are rare lesions which typically involve the thoracic spine and are an asymptomatic condition of unknown origin. They may also produce symptoms by compressing the spinal cord or nerve roots. Surgery is the treatment of choice in such lesions, but asymptomatic patients can be managed conservatively. We present a case of symptomatic, probable traumatic origin, spinal arachnoid cyst at our center in Hospital Kuala Lumpur, Malaysia. Magnetic resonance imaging spine showed well-defined, nonenhancing extradural cystic lesion from T5 to T6 vertebrae level compressing spinal cord anteriorly...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29682059/traumatic-supra-and-infra-tentorial-extradural-hematoma-case-series-and-literature-review
#14
Yunus Kuntawi Aji, Tedy Apriawan, Abdul Hafid Bajamal
Traumatic supra- and infra-tentorial extradural hematoma (TSIEDH) is a rare lesion constituting <2% of all extradural hematomas. There are only a few published articles about TSIEDH. This study included three patients with TSIEDH who were treated and operated at Dr. Soetomo General Hospital, Surabaya, Indonesia, from August 2015 to July 2016. Two patients sustained injuries in traffic accidents and one patient was injured by fall. The male to female ratio was 1:2. Glasgow Coma Scale (GCS) score ≤8 was present in one and GCS score of 9-12 was present in two patients...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29682049/primary-extradural-meningioma-of-posterior-fossa-associated-with-acquired-chiari-malformation-a-short-review
#15
Guru Dutta Satyarthee
Generally, meningioma is considered intracranial lesion occurring in the intradural compartment. However, meningioma can also occur and usually confined in the extradural compartment called as primary extradural meningioma (PEM). PEM represents a special subgroup of meningioma constitute about 1% of all meningioma. PEM arises outside the subdural compartment and usually contains neither connection underlying subdural structures nor extends into with subdural compartment. It is commonly located in the paranasal sinus, middle ear, rarely in the intradiploic spaces of calvarial bone such as temporal, frontal, and parietal bone and orbit but extremely uncommonly in the occipital and sphenoid bones...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29682037/disappearance-of-intracranial-extradural-hematomas-role-of-diastatic-cranial-fracture-and-intracranial-pressure-an-institutional-experience
#16
Abdul Rashid Bhat, Altaf Rehman Kirmani, Mohammed Afzal Wani
Context: The intracranial extradural hematoma (EDH) occupies space and creates a mass effect on the brain but the tenacious-adhesions of dura to the inner table of skull counters this effect. The intracranial pressure also pushes the hematoma back while it is held by dural tensile-force. Aims: The exploitation of a diastatic fracture, overlying an EDH, by the intracranial pressures to decompress a hematoma out of extradural space into subgaleal/subperiosteal space without surgical intervention...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29682013/traumatic-posterior-fossa-extradural-hematoma-experience-at-level-i-trauma-center
#17
Satish Kumar Verma, Sachin Anil Borkar, Pankaj Kumar Singh, Vivek Tandon, Hitesh Kumar Gurjar, Sumit Sinha, Guru Dutta Satyarthee, Deepak Gupta, Deepak Agarwal, Bhawani Shankar Sharma
Introduction: Posterior fossa extradural hematoma (PFEDH) is rare among the traumatic brain injury and represent about 4-7% cases of all EDHs. This rare condition is rapidly fatal unless identified and intervened timely. Because of limited space in posterior fossa, comparatively small volume can cause clinical deterioration. Early diagnosis by cranial computed tomography and emergent evacuation is vital for a good outcome. Materials and Methods: This study was conducted at Level I trauma center at All India Institute of Medical Sciences, New Delhi, India...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29674378/the-caval-sphincter-in-cetaceans-and-its-predicted-role-in-controlling-venous-flow-during-a-dive
#18
Margo A Lillie, A Wayne Vogl, Stephen Raverty, Martin Haulena, William A McLellan, Garry B Stenson, Robert E Shadwick
A sphincter on the inferior vena cava can protect the heart of a diving mammal from overload when elevated abdominal pressures increase venous return, yet sphincters are reported incompetent or absent in some cetacean species. We previously hypothesized that abdominal pressures are elevated and pulsatile in fluking cetaceans, and that collagen is deposited on the diaphragm according to pressure levels to resist deformation. Here we tested the hypothesis that cetaceans generating high abdominal pressures need a more robust sphincter than those generating low pressures...
April 19, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29673818/bilateral-temporal-extradural-hematoma-on-top-of-bilateral-temporal-arachnoid-cyst-first-case-report-and-extensive-literature-review
#19
Munzir Abbas, Sami Khairy, Mohammad AlWohaibi, Ahmed Aloriadi, Waleed Waslallah AlQurashi
BACKGROUND: The traumatic complication of an arachnoid cyst (AC) with intra-cystic and subdural hematoma has been reported in many cases. However, a unilateral extradural hematoma (EDH) as a complication of AC is extremely rare. Most arachnoid cysts are unilateral and are located in the middle cranial fossa. Bilateral temporal AC alone is an extremely rare condition, and a bilateral EDH on top of a bilateral temporal AC has never been reported in the literature. CLINICAL PRESENTATION: We report the case of a 25-year-old male with a known bilateral AC who was involved in a car accident and developed a bilateral temporal EDH...
April 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29644899/technical-notes-on-the-endoscopic-endonasal-approach-to-the-craniovertebral-junction-for-odontoidectomy
#20
Dennis Tang, Christopher Roxbury, Brian D'Anza, Varun Kshettry, Troy Woodard, Pablo Recinos, Raj Sindwani
INTRODUCTION: Odontoidectomy can help decompress ventral compression of the brainstem and upper cervical spinal cord in the presence of bony abnormalities of the craniovertebral junction (CVJ), e.g., an odontoid pannus. Endonasal approaches have been shown to be associated with lower morbidity compared with traditional transoral approaches. We demonstrated an entirely endonasal approach to the CVJ. MATERIALS AND METHODS: We presented our technique for performing an endoscopic endonasal odontoidectomy...
March 2018: American Journal of Rhinology & Allergy
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