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Neuroradiology Journal

Allison Bradbury, David Peterson, Charles Vite, Steven Chen, N Matthew Ellinwood, James Provenzale
PURPOSE: The goal of this study was to compare the diffusion tensor imaging (DTI) metrics from an end-stage canine Krabbe brain evaluated by MR imaging ex vivo to those of a normal dog brain. We hypothesized that the white matter of the canine Krabbe brain would show decreased fractional anisotropy (FA) values and increased apparent diffusion coefficient (ADC) and radial diffusivity (RD) values. METHODS: An 11-week-old Krabbe dog was euthanized after disease progression...
September 27, 2016: Neuroradiology Journal
Sagar Kansara, Diana Bell, Jason Johnson, Mark Zafereo
Inflammatory pseudotumor (IP) is an uncommon idiopathic lesion that often imitates malignancy clinically and radiologically. Inflammatory pseudotumors have been found to occur in various sites but rarely in the head and neck. The histopathology, imaging, and treatment of three unique cases of head and neck inflammatory pseudotumors are described in this case series. Patients in Cases 1 and 2 presented with right level II neck mass and left parotid tail mass, respectively. The patient in Case 3 presented with otalgia, jaw pain and trismus, and a left parapharyngeal space mass...
September 20, 2016: Neuroradiology Journal
Nitin Agarwal, Giulio Zuccoli, Geoffrey Murdoch, Brian T Jankowitz, Stephanie Greene
INTRODUCTION: Developmental venous anomalies (DVAs) are cited as the most common cerebral vascular malformations. Still, intracerebral hematomas are rarely thought to be caused by DVAs. In this report, the authors present a unique case of a DVA that hemorrhaged spontaneously, rather than hemorrhaging into a venous infarction following DVA thrombosis as has been more commonly reported. CLINICAL PRESENTATION: A 22-year-old previously healthy male presented to the emergency department with a severe headache, confusion, and progressive hemiparesis...
September 9, 2016: Neuroradiology Journal
Michele Cavaliere, Mariano Cimmino, Stefania Sicignano, Felice Rega, Nunzia Maione, Francesca Malacario, Lorenzo Ugga, Camilla Russo
Lesions of the retropharyngeal space (RPS) are uncommon, and they generally present as solitary, painless masses, which are often cystic. They usually originate from branchial arches anomalies, and only in a few cases do they turn out to be bronchogenic cysts. Generally, these lesions are diagnosed in childhood, but sometimes they can appear in adulthood. We report here a rare case of a bronchogenic cyst expanding into the RPS and causing dysphagia in an adult patient treated surgically. Since the RPS is clinically inaccessible, clinical examination was not crucial in determining the correct diagnosis, and only the additional information provided by radiological examinations led to the final diagnosis, which is essential for accurate surgical planning...
August 30, 2016: Neuroradiology Journal
Andrea Romano, Arturo Consoli, Francesca Tari Capone, Francesco Biraschi, Giacomo Suma, Salvatore Mangiafico, Alessandro Bozzao
We describe the use of time-resolved MR angiography in the diagnosis of cervical epidural arteriovenous fistula before final diagnosis and embolization was achieved by digital subtraction angiography. A 42-year-old woman was referred to us because of headache and dizziness, in addition to radiculopathy of the right superior limb. Angiographic examinations documented a direct high-flow arteriovenous fistula between the right vertebral artery and the cervical epidural venous plexus. The point of fistula was located in the upper third of the cervical segment below the C2 arch...
August 26, 2016: Neuroradiology Journal
Hariprakash Chakravarthy, Tzu-Kang Lin, Yao-Liang Chen, Yi-Ming Wu, Chin-Hua Yeh, Ho-Fai Wong
This is a case report of de novo development of two cerebral cavernous malformations adjacent to existing developmental venous anomalies. The development of cavernomas was noted over a follow-up period of 10 years. These developments happened during the course of staged endovascular management of a complex dural arterio-venous fistula along the right sphenoid wing. The patient presented with a proptosis secondary to lympho-haemangiomatous lesion of the fronto-orbital region and a high-flow right sphenoid wing dural arterio-venous fistula...
August 25, 2016: Neuroradiology Journal
Pierre-Luc Gamache, Maude-Marie Gagnon, Martin Savard, François Émond
This article reports the case of a 68-year-old patient with anti-HU antibodies paraneoplastic encephalitis. The clinical manifestations were atypical and the paraclinical work-up, notably the magnetic resonance imaging (MRI) showing bilateral posterior thalamic hyperintensities (pulvinar sign), misleadingly pointed towards a variant Creutzfeld-Jakob disease. After presenting the case, the differential diagnosis of the pulvinar sign is discussed along with other important diagnostic considerations.
August 24, 2016: Neuroradiology Journal
Tatsuya Ishikawa, Koji Yamaguchi, Hidenori Anami, Taichi Ishiguro, Go Matsuoka, Takakazu Kawamata
Bilateral dissecting aneurysms presenting with subarachnoid haemorrhage are rare. The treatment strategy for bilateral vertebral artery dissecting aneurysms is controversial because the contralateral vertebral artery is already dissected and can easily undergo enlargement or bleed after non-reconstructive treatment procedures such as trapping or proximal occlusion. Here, we report a case of bilateral vertebral artery dissecting aneurysm presenting with subarachnoid haemorrhage that was treated with stent-assisted coiling for the ruptured side...
August 24, 2016: Neuroradiology Journal
Charlie Chia-Tsong Hsu, Dalveer Singh, Trevor William Watkins, Gigi Nga Chi Kwan, Matt Skalski, Sachintha Hapugoda, Ipeson Korah
We present a case of Listeria monocytogenes cerebral abscess with axonal spread via the subcortical U-fibres and extreme capsule on magnetic resonance imaging, with follow-up studies demonstrating serial reduction in oedema and enhancement pattern of the white-matter fibre tracts following antimicrobial treatment. We discuss the microbiological mechanism of bacterial mobility to account for these unique imaging features. Recognition of this distinct pattern of spread of L. monocytogenes cerebral abscess may aid in diagnosis and enable early microbiological culture and treatment...
August 24, 2016: Neuroradiology Journal
Huijian Ge, Hengwei Jin, Youxiang Li, Xianli Lv
A 56-year-old woman was admitted to stent-assisted coiling for a 2-mm A1 aneurysm of the left anterior cerebral artery and a left 3-mm internal carotid artery aneurysm. While coiling the A1 aneurysm, the first 2 mm × 20 mm coil migrated through the 4.5 mm × 37 mm Enterprise stent struts, lodging at the distal anterior cerebral artery. A 4 mm × 15 mm Solitaire AB stent was used successfully in this case to remove the displaced coil. The A1 aneurysm was re-treated with a 2 mm × 40 mm coil after placement of the Enterprise stent, and the ophthalmic ICA aneurysm was also coiled through the stent struts...
August 24, 2016: Neuroradiology Journal
Simone Marziali, Francesca Di Giuliano, Eliseo Picchi, Silvia Natoli, Carlo Leonardis, Francesca Leonardis, Francesco Garaci, Roberto Floris
The presentation of carbon monoxide poisoning is non-specific and highly variable. Hyperbaric oxygen therapy is used for the treatment of this condition. Various reports show the occurrence of self-limiting seizures after carbon monoxide poisoning and as a consequence of hyperbaric oxygen therapy. Contrary to the seizures, status epilepticus has been rarely observed in these conditions. The exact pathophysiology underlying seizures and status epilepticus associated with carbon monoxide poisoning and hyperbaric oxygen therapy is not really clear, and some elements appear to be common to both conditions...
August 22, 2016: Neuroradiology Journal
Lamiaa El-Serougy, Ahmed Abdel Khalek Abdel Razek, Amani Ezzat, Hany Eldawoody, Ahmad El-Morsy
AIM: The aim of this article is to assess diffusion tensor imaging (DTI) metrics in differentiating low-grade from high-grade gliomas. PATIENTS AND METHODS: A prospective study was conducted on 35 patients with gliomas who underwent DTI. Gliomas were classified into low-grade and high-grade gliomas. The fractional anisotropy (FA), mean diffusivity (MD), linear coefficient (CL), planar coefficient (CP) and spherical coefficient (CS) of the solid tumoral part and peri-tumoral regions were calculated...
October 2016: Neuroradiology Journal
Juan Ignacio Rojas, Francisco Sánchez, Liliana Patrucco, Jimena Miguez, Jorge Funes, Edgardo Cristiano
BACKGROUND: Male sex is associated with worsening disability and a more rapid progression of multiple sclerosis (MS). This study analysed structural sex differences in magnetic resonance images of the brain, comparing women whose disease started before and after the menopause with a control group of men. METHODS: This was a case control study in which female patients whose MS started before (Group 1) and after (Group 2) the menopause were included. The control group was matched by age, disease duration, Expanded Disability Status Scale and disease-modifying treatment...
October 2016: Neuroradiology Journal
Joji Inamasu, Riki Tanaka, Ichiro Nakahara, Yuichi Hirose
We report a rare case of dural arteriovenous fistula at the craniocervical junction manifesting as cerebellar haemorrhage, which posed a diagnostic challenge for physicians. A 77-year-old woman with no history of arterial hypertension presented to our Emergency Department with dizziness, and imaging studies revealed a small cerebellar haemorrhage. She was diagnosed with hypertensive intracerebral haemorrhage and conservatively treated. Four months later, she developed subarachnoid haemorrhage, and imaging studies revealed dural arteriovenous fistula at the left C1 dural sleeve...
October 2016: Neuroradiology Journal
Ayşe Kartal, Kürşad Aydın
Aspartylglucosaminuria is a rare lysosomal storage disorder that occurs as a result of a deficiency of the aspartylglucosaminidase enzyme. Because the disease is commonly referred to as the Finnish disease heritage, it is underdiagnosed outside of Finland. To date, only three Turkish patients are described in the literature. Here we describe the clinical and brain magnetic resonance imaging findings in two Turkish cousins with aspartylglucosaminuria, which can raise the suspicion of this rare disease in clinical practice...
October 2016: Neuroradiology Journal
Gianvincenzo Sparacia, Claudia Speciale, Aurelia Banco, Francesco Bencivinni, Massimo Midiri
PURPOSE: The purpose of this study was to assess the accuracy of susceptibility-weighted imaging (SWI), compared with T2*-weighted gradient echo (GRE) imaging in assessing cerebral cavernous malformations. MATERIALS AND METHODS: We retrospectively evaluated 21 patients with a familial form of cavernous malformation. Magnetic resonance (MR) protocol included non-enhanced and contrast-enhanced fast-spin echo (FSE) T1-weighted sequences, FSE T2-weighted sequences, fluid-attenuated inversion-recovery (FLAIR), GRE T2*-weighted and SWI sequences...
October 2016: Neuroradiology Journal
Motohiro Nomura, Akira Tamase, Tomoya Kamide, Kentaro Mori, Syunsuke Seki, Yu Iida, Kei-Ichiro Suzuki, Takae Aoki, Ken-Ichi Hirano, Mitsuyuki Takahashi, Yuichi Kawabata, Tatsu Nakano, Hiroki Taguchi
We report a patient with a traumatic middle cerebral artery dissection, which showed hyperperfusion in the territory supplied by the left middle cerebral artery. A 45-year-old man experienced speech disturbance and motor weakness in his right hemibody on the day following mild head trauma. His symptoms worsened on the fourth day. Magnetic resonance imaging showed narrowing in the left M1 portion of the middle cerebral artery. Angiography showed narrowing and dilatation in the left middle cerebral artery trunk...
October 2016: Neuroradiology Journal
Elisa Scola, Ida Sirgiovanni, Sabrina Avignone, Claudia Maria Cinnante, Riccardo Biffi, Monica Fumagalli, Fabio Triulzi
Commissural embryology mechanisms are not yet completely understood. The study and comprehension of callosal dysgenesis can provide remarkable insights into embryonic or fetal commissural development. The diffusion tensor imaging (DTI) technique allows the in vivo analyses of the white-matter microstructure and is a valid tool to clarify the disturbances of brain connections in patients with dysgenesis of the corpus callosum (CC). The segmental callosal agenesis (SCAG) is a rare partial agenesis of the corpus callosum (ACC)...
October 2016: Neuroradiology Journal
Eric Nyberg, Justin Honce, Bette K Kleinschmidt-DeMasters, Brian Shukri, Sarah Kreidler, Lidia Nagae
BACKGROUND: Standard of care for high-grade gliomas (HGGs) includes surgical debulking and adjuvant chemotherapy and radiation. Patients under treatment require frequent clinical and imaging monitoring for therapy modulation. Differentiating tumor progression from treatment-related changes can be challenging on conventional MRI, resulting in delayed recognition of tumor progression. Arterial spin labeling (ASL) may be more sensitive for tumor progression. MATERIALS AND METHODS: ASL and associated conventional MR images obtained in patients previously treated for HGGs and before biopsy or re-resection were reviewed by three neuroradiologists who were blinded to the histopathologic results...
October 2016: Neuroradiology Journal
Gian Luca Cuneo, Irene Grazzini, Martina Guadagni, Elisabetta Venturini, Amedeo Bianchi
Bickerstaff brainstem encephalitis (BBE) is a rare neurological disease that generally has a good prognosis. We describe an atypical case of a patient with severe BBE; the presentation was uncommon because of the lack of ophthalmoplegia and because of evidence of both peripheral neuropathy and brainstem encephalitis. The article reports clinical and biochemical evaluation and focuses on magnetic resonance imaging (MRI) findings in diagnosis and management of the patient. Notably, we found a previously unreported dramatic spinal cord involvement on MRI...
October 2016: Neuroradiology Journal
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