13,328 results match your criteria Arachnoid Cyst Imaging


Spinal arachnoiditis ossificans: report of a quadruple triggered case.

World Neurosurg 2018 Dec 3. Epub 2018 Dec 3.

Department of Neurological Surgery, Policlinico "G. Rodolico" University Hospital, Via Santa Sofia 86, 95123 - Catania, Italy.

Background: Arachnoiditis ossificans (AO) is a rare condition often associated with previous spine surgery. Here we describe a unique case of a patient affected by ankylosing spondylitis (AS), presenting with progressive neurological deterioration due to AO. We also review the literature on evaluation and management of patients suffering from AO. Read More

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December 2018
1 Read

Spontaneous Acute Subdural Hematoma Associated with Arachnoid Cyst and Intra-cystic Hemorrhage.

Cureus 2018 Sep 28;10(9):e3383. Epub 2018 Sep 28.

Neurosurgery, Advocate Christ Medical Center, Oak Lawn, USA.

Arachnoid cysts (ACs) are congenital, extra-axial lesions containing fluid similar to the composition of cerebrospinal fluid. Usually found incidentally, these lesions are observed with serial imaging to document their growth patterns and stability, and are then followed conservatively until clinical symptoms develop. Surgical options for symptomatic arachnoid cysts include cyst aspiration, cyst evacuation with fenestration into the subarachnoid space, and shunt procedures including cysto-peritoneal and cysto-ventricular shunts. Read More

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September 2018

Dorsal arachnoid web: A missed entity.

Neurol India 2018 Nov-Dec;66(6):1839-1841

Department of Neurosurgery, Max Institute of Neurosciences, Malsi, Uttarakhand, India.

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December 2018

An unusual postoperative complication in a thoracic spinal extradural arachnoid cyst.

Neurol India 2018 Nov-Dec;66(6):1837-1839

Department of Neurosurgery, Sri Sathya Sai Institute of Higher Medical Sciences, Bengaluru, Karnataka, India.

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December 2018

Fourth ventricle stent placement for treatment of recurrent syringomyelia in patients with type I Chiari malformations.

Authors:

J Neurosurg Pediatr 2018 Oct 1:1-7. Epub 2018 Oct 1.

OBJECTIVEIn patients with syringomyelia and type I Chiari malformation (CM-I) who have required reoperation because of persistent, recurrent, or expanding syrinx, the senior author placed a stent from the fourth ventricle to the cervical subarachnoid space in hopes of promoting circulation of CSF out of the ventricle and away from the central canal of the spinal cord. This study was undertaken to determine the long-term success of this operative stratagem in eliminating the syrinx, as well as to document the complications that occurred following stent placement. The technique utilized for placement of fourth ventricle stents is presented. Read More

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October 2018

Surgical treatment of a thoracic ventral intradural arachnoid cyst associated with syringomyelia: case report.

Authors:

J Neurosurg Spine 2018 Nov 1:1-5. Epub 2018 Nov 1.

The pathogenesis of thoracic ventral intradural spinal arachnoid cyst (ISAC) is unknown due to its extremely low incidence. In addition, its surgical treatment is complicated because of the ventral location, large craniocaudal extension, and frequent coexistence of syringomyelia. The optimal surgical strategy for thoracic ventral ISAC remains unclear and continues to be a matter of debate. Read More

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November 2018

A review on the effectiveness of surgical intervention for symptomatic intracranial arachnoid cysts in adults.

World Neurosurg 2018 Nov 26. Epub 2018 Nov 26.

Division of Neurosurgery; Department of Surgery; University of Tennessee, Graduate School of Medicine; Knoxville, Tennessee, United States of America, 1932 Alcoa Hwy #580, Knoxville, TN, 37920.

Background: Intracranial arachnoid cysts are generally benign and can be asymptomatic or symptomatic. In cases where patient symptoms are indicated, the effects of arachnoid cysts can be disabling. There is minimal quantitative evidence on the effectiveness of surgical intervention to relieve symptoms, therefore non-surgical treatment, such as pain management, is often prescribed. Read More

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November 2018
2 Reads

Cerebral vasospasm after endoscopic fenestration of a temporal arachnoid cyst in a child-a case report and review of the literature.

Childs Nerv Syst 2018 Nov 28. Epub 2018 Nov 28.

Department of Neurosurgery, Faculty of Medicine, Saarland University Medical Center and Saarland University, Gebäude 90.5, 66421, Homburg/Saar, Germany.

Introduction: Intracranial arachnoid cysts (ACs) represent rare extra-axial CSF-containing lesions. Surgical management mainly depends on the cyst location and its size. Nevertheless, pure endoscopic fenestration represents a relatively straightforward and safe technique, and-in most cases-the treatment of choice for symptomatic intracranial ACs. Read More

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November 2018

Does lumbar drainage reduce postoperative cerebrospinal fluid leak after endoscopic endonasal skull base surgery? A prospective, randomized controlled trial.

Authors:

J Neurosurg 2018 Oct 1:1-7. Epub 2018 Oct 1.

OBJECTIVEBased on a null hypothesis that the use of short-term lumbar drainage (LD) after endoscopic endonasal surgery (EES) for intradural pathology does not prevent postoperative CSF leaks, a trial was conducted to assess the effect of postoperative LD on postoperative CSF leak following standard reconstruction.METHODSA prospective, randomized controlled trial of lumbar drain placement after endoscopic endonasal skull base surgery was performed from February 2011 to March 2015. All patients had 3-month follow-up data. Read More

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October 2018
1 Read

Probabilistic Tractography to Predict the Position of Cranial Nerves Displaced by Skull Base Tumors: Value for Surgical Strategy Through a Case Series of 62 Patients.

Neurosurgery 2018 Nov 26. Epub 2018 Nov 26.

CREATIS Laboratory CNRS UMR5220, Inserm U1206, INSA-Lyon, University of Lyon 1, Lyon, France.

Background: Predicting the displacement of cranial nerves by tumors could make surgery safer and the outcome better. Recent advances in imaging and processing have overcome some of the limits associated with cranial nerve tractography, such as spatial resolution and fiber crossing. Among others, probabilistic algorithms yield to a more accurate depiction of cranial nerve trajectories. Read More

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November 2018
5 Reads

How I do it: operative nuances of multiple burr hole surgery for moyamoya disease and syndrome.

Acta Neurochir (Wien) 2018 Nov 24. Epub 2018 Nov 24.

Department of Neurosurgery, Antwerp University Hospital, Wilrijkstraat 10, 2650, Edegem, Belgium.

Background: Burr hole surgery for moyamoya disease and moyamoya syndrome is known to be an effective, versatile, and relatively simple revascularization technique. We will focus on the technical operative aspects of multiple burr hole surgery as we perform it in our center.

Methods: Periosteal flaps are prepared and placed in a burr hole with beveled edge, after opening the dura and arachnoid membrane, in order to facilitate neovascularization into the ischemic cortex. Read More

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November 2018

Cerebro-venous hypertension: a frequent cause of so-called "external hydrocephalus" in infants.

Childs Nerv Syst 2018 Nov 24. Epub 2018 Nov 24.

Division of Pediatric Neurosurgery, Department of Neurosurgery, University Hospital of Tuebingen, Tuebingen, Germany.

Introduction: External hydrocephalus (eHC) is commonly defined as a subtype of infant "hydrocephalus" consisting of macrocepahly associated with enlarged subarachnoid space and no or mild ventriculomegaly. This status is thought to be related to impaired CSF absorption because of arachnoid villi immaturity. However, other factors like the venous system might be involved in the development of the clinical picture. Read More

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November 2018
3 Reads

Ventral craniovertebral junction arachnoid cyst in an elderly patient- a case report of a unique occurrence at extremes of age.

World Neurosurg 2018 Nov 22. Epub 2018 Nov 22.

Department of Neurosurgery, LTMGH & LTMMC, Sion (west), Mumbai, Maharashtra- 400022, India.

Background: Craniovertebral junction arachnoid cysts are uncommon. Amongst the ones reported, ventrally located arachnoid cysts at extremes of age are even rarer. We report a successfully managed case of a ventrally placed arachnoid cyst in an 88-year-male by an unconventional surgical approach. Read More

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November 2018

Huge multiple spinal extradural meningeal cysts in infancy.

Childs Nerv Syst 2018 Nov 23. Epub 2018 Nov 23.

Department of Radiology, Fukuoka Children's Hospital, 5-1-1 Kashii-Teriha, Higashi-ku, Fukuoka, 813-0017, Japan.

Background: Multiple spinal extradural meningeal cysts (SEMCs) are rare lesions. SEMCs communicate with the subarachnoid space through multiple dural defects and expand into the extradural space with progressive spinal cord compression.

Case Presentation: We report a 5-month-old boy with hydronephrosis involving nine huge SEMCs that were distributed from the T1-L5 levels. Read More

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November 2018
4 Reads

The focus of temperature monitoring with zero-heat-flux technology (3M Bair-Hugger): a clinical study with patients undergoing craniotomy.

J Clin Monit Comput 2018 Nov 22. Epub 2018 Nov 22.

Division of Anesthesiology, Department of Anesthesiology, Intensive Care and Pain Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.

In the noninvasive zero-heat-flux (ZHF) method, deep body temperature is brought to the skin surface when an insulated temperature probe with servo-controlled heating on the skin creates a region of ZHF from the core to the skin. The sensor of the commercial Bair-Hugger ZHF device is placed on the forehead. According to the manufacturer, the sensor reaches a depth of 1-2 cm below the skin. Read More

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November 2018

Secondary Arachnoid Cyst - A Late Complication of Craniotomy: A Case Report and Review of Literature.

Asian J Neurosurg 2018 Oct-Dec;13(4):1273-1275

Department Of Neurosurgery, Dr. Soliman Fakeeh Hospital, Jeddah, Saudi Arabia.

Arachnoid cyst can be defined as cerebral-spinal fluid entrapment within the central nervous system. It may occur primarily as a congenital malformation or secondary as a complication following trauma, infection, bleeding, or surgical manipulation. Congenital arachnoid cyst usually asymptomatic and cause no pressure symptoms. Read More

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November 2018
5 Reads

Intradural Disc a Diagnostic Dilemma: Case Series and Review of Literature.

Asian J Neurosurg 2018 Oct-Dec;13(4):1033-1036

Department of Orthopedic, King Edward Memorial Hospital, Mumbai, India.

Introduction: We present a case series of six cases of intradural disc herniation at L4-L5 level diagnosed on the basis of intraoperative findings.

Result: All our cases, on preoperative magnetic resonance imaging (MRI) were reported as having diffuse annular bulge with large posterocentral extrusion. Our study comprised patients in age group of 30-60 years. Read More

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November 2018
1 Read

Surgical treatment of trigeminal neuralgia with no neurovascular compression: A retrospective study and literature review.

J Clin Neurosci 2018 Dec 24;58:42-48. Epub 2018 Oct 24.

Department of Skull Base Surgery Center, Department of Neurosurgery, XuanWu Hospital, Capital Medical University, Beijing, China.

The objective of the current study is to summarize the experiences of 360-degree circumferential arachnoid dissection for TN in patients without NVC. Clinical data from 19 TN patients without NVC who underwent 360-degree circumferential arachnoid dissection were retrospectively analyzed. All patients underwent preoperative examinations of three-dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) and three-dimensional nuclear magnetic resonance of constructive interference in steady state (3D-CISS) to identify the neurovascular structures around the trigeminal nerve. Read More

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December 2018
3 Reads

Surgical Management of Spinal Arachnoid Cysts in Adults.

World Neurosurg 2018 Nov 14. Epub 2018 Nov 14.

Department of Neurosurgery, Goodman Campbell Brain and Spine, Indiana University, Indianapolis, Indiana, USA. Electronic address:

Background: Spinal arachnoid cysts (SACs) are uncommon lesions in the spinal canal. They are usually asymptomatic, but can occasionally cause mass effect leading to neurologic symptoms. They can be congenital or secondary to a variety of causes. Read More

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November 2018
6 Reads

Sylvian fissure splitting revisited: Applied arachnoidal anatomy and proposition of a live practice model.

J Clin Neurosci 2018 Nov 13. Epub 2018 Nov 13.

Division of Neurological Surgery, Barrow Neurological Institute, Phoenix, AZ, USA. Electronic address:

Opening the Sylvian fissure is an important technique in neurosurgery. Despite providing excellent anatomic fidelity, cadaveric and synthetic models lack real-time hemodynamics and coagulation physiology. We introduce a live rat aortoiliac model to practice the basic skills of Sylvian fissure splitting based on its arachnoidal microanatomy. Read More

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November 2018

Less known aspects of central hypothyroidism: Part 1 - Acquired etiologies.

J Clin Transl Endocrinol 2018 Dec 26;14:25-33. Epub 2018 Sep 26.

Department of Medical Endocrinology and Metabolism, Rigshospitalet, National University Hospital, Copenhagen University, Copenhagen, Denmark.

Central hypothyroidism (CH) is a rare cause of hypothyroidism. CH is frequently overlooked, as its clinical picture is subtle and includes non-specific symptoms; furthermore, if measurement of TSH alone is used to screen for thyroid function, TSH concentrations can be normal or even above the upper normal reference limit. Indeed, certain patients are at risk of developing CH, such as those with a pituitary adenoma or hypophysitis, those who have been treated for a childhood malignancy, have suffered a head trauma, sub-arachnoid hemorrhage or meningitis, and those who are on drugs capable to reduce TSH secretion. Read More

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December 2018
4 Reads

Severe headache in a patient with meningioma showing extensive dural tail correlates with IgG4-positive plasma cells and eosinophils: A case report and review of literature.

Surg Neurol Int 2018 8;9:202. Epub 2018 Oct 8.

Department of Neurosurgery, Keio University School of Medicine, Shinjuku-Ku, Tokyo, 160-8582, Japan.

Background: Meningiomas originate from meningothelial cells of the arachnoid membrane. Few cases of meningioma with infiltration of inflammatory cells, such as lymphocytes and plasma cells, have been reported, and the mechanisms underlying meningioma-induced inflammatory reactions have not been fully elucidated.

Case Description: In this study, we report an extremely rare case of meningioma with infiltration of both IgG4-positive plasma cells and eosinophils showing extensive dural tail and reactive inflammation of the surrounding arachnoid tissue. Read More

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October 2018

Intracerebral hematoma after endoscopic fenestration of an arachnoid cyst: A case report.

Medicine (Baltimore) 2018 Nov;97(44):e13106

Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.

Rationale: An intracranial arachnoid cyst is a relatively common congenital benign lesion. A small number of patients present with neurological symptoms. Endoscopic fenestration has become a common treatment for arachnoid cysts in recent years, but intracerebral hematoma after surgery is rarely reported. Read More

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November 2018
7 Reads

Arachnoid Granulations Mimicking Multiple Osteolytic Bone Lesions in the Occipital Bone.

Brain Tumor Res Treat 2018 Oct;6(2):68-72

Department of Neurosurgery, Kyungpook National University School of Medicine, Kyungpook National University Hospital, Daegu, Korea.

We report a rare case of arachnoid granulations mimicking multiple osteolytic bone lesions. A 66-year-old woman was admitted to a local clinic for a regular checkup. Upon admission, brain CT showed multiple osteolytic lesions in the occipital bone. Read More

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October 2018
5 Reads

Recurrent Meningitis in an 11-year-old Girl with a Petrous Apex Cystic Lesion.

Acta Med Okayama 2018 Oct;72(5):519-523

Department of Pediatrics, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.

Cases of recurrent meningitis in elderly patients with a spontaneous cerebrospinal fistula have been reported, and in some of these patients, cystic lesions were thought to be the underlying cause. We report a case of recurrent meningitis in an 11-year-old Japanese girl with an arachnoid cyst in the petrous apex. Pulsation of the cystic lesion was thought to cause bone erosion, leading to the formation of a fistula. Read More

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October 2018
8 Reads

Resection of an extensive thoracic arachnoid cyst via less-invasive targeted laminoplasties.

Int J Neurosci 2018 Nov 28:1-4. Epub 2018 Nov 28.

a Department of Neurologic Surgery , Mayo Clinic , Rochester , MN , USA.

Objective: Spinal arachnoid cysts are a known cause of spinal cord compression. When symptomatic, treatment of choice entails laminectomies over the length of the cyst in order to achieve complete cyst removal and fenestration.

Methods: A 60-year-old woman presented with a one-year history of progressive pain between the shoulder blades, exacerbated by sitting up or standing, and relieved by lying supine. Read More

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November 2018
11 Reads

[National guidelines for treatment of chronic subdural haematoma].

Ugeskr Laeger 2018 Oct;180(42)

Chronic subdural haematoma (CSDH) is a collection of liquefied blood between the dura mater and the arachnoid layer of the brain. The incidence of CSDH increases with age and with an ageing population, and a rise in CSDH prevalence is anticipated. The Danish Chronic Subdural Hematoma Study was created on behest of the four neurosurgical departments in order to standardise treatment, research and development as well as creating the first Danish national guidelines in CSDH management. Read More

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October 2018
2 Reads

Intracranial grade I meningiomas: Confrontation between histological examination and magnetic resonance imaging.

Tunis Med 2018 Jan;96(1):18-21

Introduction: Meningiomas are tumors derived from arachnoid cells. More than 90% of cases have a benign clinical course and are classified as grade I according to the World Health Organization. A confrontation between radiologic findings and pathological examination is necessary to predict the grading of meningiomas. Read More

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January 2018
3 Reads

High prevalence of syndromic disorders in patients with non-isolated central precocious puberty.

Eur J Endocrinol 2018 Dec;179(6):373-380

Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Endocrinology-Diabetology Department, Reference Center for Endocrine Growth and Developmental Diseases, Paris, France.

Objective Non-idiopathic CPP is caused by acquired or congenital hypothalamic lesions visible on MRI or is associated with various complex genetic and/or syndromic disorders. This study investigated the different types and prevalence of non-isolated CPP phenotypes. Design and Methods This observational cohort study included all patients identified as having non-idiopathic CPP in the database of a single academic pediatric care center over a period of 11. Read More

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December 2018
2 Reads

Retroclival Arachnoid Cysts: Case Series, Literature Review, and New Classification Proposal.

World Neurosurg 2018 Oct 11. Epub 2018 Oct 11.

Department of Neurosurgery, Marmara University, Istanbul, Turkey.

Background: The retroclival region is among the rarest locations for an arachnoid cyst (AC), with only a few reported cases. No accepted classification system is available for these rare cysts. Such a classification system would solve the nomenclature problem and could result in easier and more systematic management. Read More

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October 2018
6 Reads

Symptomatic Arachnoid Cyst After Cervical Manipulation.

J Emerg Med 2018 Oct 5. Epub 2018 Oct 5.

Department of Emergency Medicine, Scott and White Medical Center - Temple, Texas A&M Health Science Center College of Medicine, Temple, Texas.

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October 2018
4 Reads

Chiari 1 Malformation Surgery: Comparing Non-violation of the Arachnoid versus Arachnoid Opening and Thermocoagulation of the Tonsils.

World Neurosurg 2018 Oct 4. Epub 2018 Oct 4.

Department of Anatomy, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.

Objective: Evidence is lacking concerning the myriad surgical techniques for type 1 Chiari malformation. This study evaluated the impact of arachnoid violation with tonsil thermocoagulation during surgical craniovertebral junction decompression.

Methods: The evaluation included aspects of the neurologic examination and parameters of cerebrospinal fluid flow on magnetic resonance imaging during preoperative and postoperative periods. Read More

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October 2018
2 Reads

Magnetic resonance imaging of the fetal brain at 3 Tesla: Preliminary experience from a single series.

Medicine (Baltimore) 2018 Oct;97(40):e12602

Department of Diagnostic and Therapeutic Neuroradiology, Centre Hospitalier Universitaire (CHU) - Hôpital Pierre Paul Riquet, University of Toulouse, Toulouse, France.

To report our preliminary experience with cerebral fetal magnetic resonance imaging (MRI) with a 3 Tesla (3T) scanner. We assessed feasibility, time of acquisition, and possibility to establish a diagnosis.Fifty-nine pregnant women had fetal MRI performed during the third trimester of pregnancy due to clinical or sonography concern of a central nervous system anomaly. Read More

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October 2018
8 Reads

Natural History of Medulloblastoma in a Child with Neurofibromatosis Type I.

Asian J Neurosurg 2018 Jul-Sep;13(3):918-920

Department of Neurosurgery, Children's Hospital Medical Center, Tehran University of Medical Science, Tehran, Iran.

Medulloblastoma is one of the common posterior fossa tumors in children. The natural history of this tumor in presymptomatic period is not well known. Widespread use of brain imaging has increased the detection of incidental brain tumors in totally asymptomatic persons. Read More

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October 2018
6 Reads

The Effects of the Quincke Spinal Needle Bevel Insertion on Postdural Puncture Headache and Hemodynamics in Obstetric Patients.

Anesth Essays Res 2018 Jul-Sep;12(3):705-710

Department of Anesthesiology, Dicle University Medical, Diyarbakir, Turkey.

Aim: Spinal anesthesia is a widely used procedure in modern anesthesia. Although it is a reliable and frequently used anesthetic procedure, it involves complications, including postdural puncture headache caused by arachnoid punctured, which significantly affects postoperative well-being. In this study, we aimed to observe headache frequency with 26-G Quincke spinal needle in either transverse or sagittal planes. Read More

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October 2018
2 Reads

Enterobacter Meningitis Due To Dermoid Cyst Manipulation.

Iran J Child Neurol 2018 ;12(4):169-177

Department of Pediatrics, Bouali Children's Hospital, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.

Gram-negative meningitis can occurssubsequent to dura-arachnoid barrier disruption because of trauma, surgery and rarely an infected dermoid cyst. Association of neurosurgical procedures with Gram-negative meningitis was described for the first time in 1940. Intracranial infections from gram-negative bacilli like are serious and difficult to treat as many antibiotics fail to achieve bactericidal concentrations in the cerebrospinal fluid. Read More

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January 2018

Grade II Sylvian fissure meningiomas without dural attachment: case report and review of the literature.

CNS Oncol 2018 Oct 2:CNS20. Epub 2018 Oct 2.

Department of Neurosurgery, King's College Hospital NHS Foundation Trust, London, UK.

Sylvian fissure meningiomas (SFMs) represent a rare subgroup of nondural-based tumors arising from the meningothelial cells within the arachnoid of the Sylvian fissure. SFMs are more frequent in young males, usually manifest with seizures and display the same radiological features of meningiomas in other locations. Although the absence of dural attachment makes these tumors suitable for a complete resection, their anatomical relationships with the middle cerebral artery branches have impaired its achievement in half of them. Read More

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October 2018

Spinal arachnoid cysts in adults: diagnosis and management. A single-center experience.

J Neurosurg Spine 2018 Sep 28:1-9. Epub 2018 Sep 28.

Department of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, Iowa; and.

Objective: Adult spinal arachnoid cysts (SACs) are rare entities of indistinct etiology that present with pain or myelopathy. Diagnosis is made on imaging studies with varying degrees of specificity. In symptomatic cases, the standard treatment involves surgical exploration and relief of neural tissue compression. Read More

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September 2018
1 Read

Retinal Alteration Associated with an Arachnoid Cyst of the Pineal Region.

World Neurosurg 2018 Dec 22;120:420-422. Epub 2018 Sep 22.

Department of Neurosurgery, "Iuliu Hațieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania; Clinic of Neurosurgery, Emergency County Hospital Cluj, Cluj-Napoca, Romania.

Background: Retinal optical coherence tomography (OCT) is a noninvasive high-resolution imaging technique, which is considered a biomarker of neurodegeneration. Several intracranial lesions can induce retrograde neurodegeneration which can be assessed using OCT. The cysts of the pineal region are usually asymptomatic and most often are an incidental radiologic finding. Read More

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December 2018
9 Reads

The Method for Placement of an Intraoperative Continuous Facial Nerve Stimulating Electrode in Acoustic Neuroma Surgery: Technical Note.

Neurol Med Chir (Tokyo) 2018 Nov 21;58(11):477-480. Epub 2018 Sep 21.

Department of Neurosurgery and Stroke Center, Tokyo Metropolitan Police Hospital.

Preservation of facial nerve (FN) function is the most important goal in acoustic neuroma (AN) surgery. We have been using intraoperative continuous facial nerve monitoring (ICFNm) of evoked electromyography during AN surgery. ICFNm is very useful, and we can identify the real-time functions of the FN. Read More

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November 2018

Pathological Relationship Between Adamantinomatous Craniopharyngioma and Adjacent Structures Based on QST Classification.

J Neuropathol Exp Neurol 2018 Nov;77(11):1017-1023

Department of Neurosurgery, Nanfang Hospital of Southern Medical University, Guangzhou, China.

The aim of this study was to clarify pathological and anatomical relationships between adamantinomatous craniopharyngiomas (ACP) and their surrounding structures. We previously established a QST classification scheme based on the apparent anatomic origin of the tumors. According to this classification, 13 type Q tumors, 6 type S tumors, and 42 type T ACPs were analyzed. Read More

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November 2018
5 Reads

Spectrum of lytic lesions of the skull: a pictorial essay.

Insights Imaging 2018 Oct 19;9(5):845-856. Epub 2018 Sep 19.

Department of Advanced Biomedical Sciences, University of Naples "Federico II", Via Pansini, 5, 80131, Naples, Italy.

Lytic lesions of the skull include a wide range of diseases, ranging from benign conditions such as arachnoid granulations or vascular lacunae, to aggressive malignant lesions such as lymphomas or metastases. An early and correct characterisation of the nature of the lesion is, therefore, crucial, in order to achieve a fast and appropriate treatment option. In this review, we present the radiological appearance of the most frequent lytic lesions of the skull, describing findings from different imaging modalities (plain X-rays, CT and MRI), with particular attention to diagnostic clues and differential diagnoses. Read More

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October 2018
6 Reads

Resolution of unilateral upper limb action tremor after surgical treatment of a contralateral frontoparietal arachnoid cyst.

Neurol Sci 2018 Sep 19. Epub 2018 Sep 19.

Neurology Unit, L. Sacco University Hospital, Via G.B. Grassi, 74, 20157, Milan, Italy.

Purpose: Arachnoid cysts (ACs) are cerebrospinal fluid-filled sacs. Although ACs are a frequent finding on neuroimaging, most remain asymptomatic during lifetime.

Case Report: We report a very rare case of a 62-year-old female patient presenting with a tremor due to a giant arachnoid cyst, which completely resolved after cyst-peritoneal shunting. Read More

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September 2018
1 Read

Impact of sorafenib on epidural fibrosis: An immunohistochemical study.

World J Clin Cases 2018 Sep;6(9):249-258

Department of Neurosurgery, Medical Faculty, Medipol University, İstanbul 34303, Turkey.

Aim: To determine if sorafenib, an antineoplastic agent, could prevent the development of spinal epidural fibrosis (EF).

Methods: The study used CD105 and osteopontin antibodies in an immunohistochemical approach to quantify EF that occurred as a consequence of laminectomy in rats. Wistar albino rats ( = 16) were divided into two groups: control (L1-2 level laminectomy only) and sorafenib treatment (L1-2 level laminectomy + topical sorafenib). Read More

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September 2018
7 Reads

Is arachnoid cyst a static disease? A case report and literature review.

Childs Nerv Syst 2018 Sep 12. Epub 2018 Sep 12.

Department of Neurosurgery, School of Medicine, Chungnam National University, 282 Munhwa-ro, Jung-gu, Daejeon, 35015, South Korea.

Introduction: The increasing use of intracranial imaging has led to more frequent diagnoses of arachnoid cysts (ACs). Although ACs are a frequent finding on neuroimaging in children, the prevalence and natural history of these cysts are not well defined. Most ACs may persist and remain asymptomatic throughout life and not require treatment. Read More

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September 2018
1 Read

The cerebellar "tilted telephone receiver sign" enables prenatal diagnosis of PHACES syndrome.

Eur J Paediatr Neurol 2018 Sep 1. Epub 2018 Sep 1.

Fetal Neurology Clinic, Obstetrics-Gynecology Ultrasound Unit, Department of Obstetrics and Gynecology, Wolfson Medical Center, Holon and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Pediatric Neurology Unit, Wolfson Medical Center, Holon and Sackler School of Medicine, Tel-Aviv University, Tel-Aviv-Aviv, Israel.

Objectives: To describe a unique posterior fossa neuroimaging characteristic of prenatal PHACES syndrome (PS): unilateral cerebellar hypoplasia (UCH) and ipsilateral posterior fossa (PF) cyst communicating with an asymmetrically distended 4th ventricle.

Methods: The registries of seven prenatal diagnosis centers were searched for cases with PF findings and a postnatal diagnosis of PS. All records were evaluated for ultrasound and MRI findings and the postnatal outcome. Read More

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September 2018
1 Read

Idiopathic intracranial hypertension: The veno glymphatic connections.

Neurology 2018 Sep;91(11):515-522

From the Division of Neuroradiology (S.L., P.N., M.H., T.K., V.M.-P.), Department of Medical Imaging, Toronto Western Hospital, University Health Network, Canada; Division of Neuroradiology (S.L.), Groupe Hospitalier Pitié Salpêtrière-Université Paris Sorbonne, France; Division of Neurosurgery (I.R., M.H., V.M.-P.), Department of Surgery, Toronto Western Hospital, University Health Network, University of Toronto; and Krembil Neuroscience Center (I.R.), University Health Network, Toronto, Canada.

The recent discoveries of the glymphatic and lymphatic systems of the brain have helped advance our understanding of CSF physiology and may allow new insights in the understanding of idiopathic intracranial hypertension (IIH). The clinical and radiologic presentations of IIH appear to be related to congestion of the glymphatic system associated with an overflow of the lymphatic CSF outflow pathway. By revisiting the role of "vascular arachnoid granulations" in the brain, we hypothesize that an initial impairment of the transport of interstitial fluid from the glymphatic system to the venous blood of the dural sinuses may trigger the hydrodynamic cascade of IIH. Read More

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September 2018
8.290 Impact Factor

Direct puncture for diagnosis of intradural spinal arachnoid cyst and fenestration using 3D rotational fluoroscopy: technical note and the "jellyfish sign".

J Neurosurg Spine 2018 Sep 7:1-5. Epub 2018 Sep 7.

Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.

The authors report on a 47-year-old woman with a symptomatic thoracic spinal arachnoid cyst (SAC) who underwent a novel procedure that involves direct puncture of the SAC to visualize, diagnose, and potentially treat these rare spinal lesions. The method described utilizes 3D fluoroscopy to gain access to the SAC, followed by injection of myelographic contrast into the cyst. A characteristic "jellyfish sign" was observed that represents the containment of the contrast within the superior aspect of the cyst and a clear block of cranial flow of contrast, resulting in an undulating pattern of movement of contrast within the cyst. Read More

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September 2018
1 Read

The Clival Line as an Important Arachnoid Landmark During Endoscopic Third Ventriculostomy: An Anatomic Study.

World Neurosurg 2018 Dec 3;120:e877-e888. Epub 2018 Sep 3.

Department of Neurosurgery, Klinikum Stuttgart, Stuttgart, Germany.

Objective: Endoscopic third ventriculostomy (ETV) is a well-accepted treatment option instead of ventriculoperitoneal shunt placement in cases of obstructive hydrocephalus. A sufficient flow from the ventricles to the basal cisterns requires perforation of the arachnoid membranes in the retroclival region. This point is critical to achieve an optimal outcome. Read More

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December 2018
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