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Neuroradiology Journal

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https://www.readbyqxmd.com/read/28071288/vulnerable-carotid-plaque-imaging-and-histopathology-without-a-dedicated-mri-receiver-coil
#1
Laura A Fitzpatrick, Nadav Berkovitz, Marlise P Dos Santos, Nevin Majeed, Rafael Glikstein, Santanu Chakraborty, John P Veinot, Grant Stotts, Alain Berthiaume, Robert Chatelain
Stroke is associated with vulnerable carotid artery plaques showing specific histopathologic features, namely a lipid-rich necrotic core, intraplaque hemorrhage, ulceration, and thin fibrous cap. While ultrasound and computed tomography (CT) can identify carotid plaques and determine the extent of stenosis, magnetic resonance imaging (MRI) provides further information regarding plaque composition and morphology. In this feasibility study, three patients with symptomatic, moderately stenosed plaques were imaged with CT angiography (CTA) and MRI (3T and 1...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28059674/coronal-clival-cleft-in-charge-syndrome
#2
Eman Mahdi, Matthew T Whitehead
CHARGE syndrome is a genetic disorder with multi-systemic congenital anomalies, most commonly including coloboma, heart malformations, choanal atresia, developmental delay, and genital and ear anomalies. The diagnostic criteria for CHARGE syndrome has been refined over the years. However, there are limited reports describing skullbase and craniocervical junction abnormalities. These osseous malformations are often under recognized, especially on MRI. We report here a case of CHARGE syndrome with colobomas, cleft lip and palate, patent ductus arteriosus, undescended testes, and a coronal clival cleft which has not been previously depicted in CHARGE syndrome...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28059632/pseudoaneurysm-formation-due-to-rupture-of-intracranial-aneurysms-case-series-and-literature-review
#3
Motohiro Nomura, Kentaro Mori, Akira Tamase, Tomoya Kamide, Syunsuke Seki, Yu Iida, Tatsu Nakano, Yuichi Kawabata, Taro Kitabatake, Teruyuki Nakajima, Kiyoyuki Yasutake, Kei Egami, Tatsunori Takahashi, Mitsuyuki Takahashi, Kunio Yanagimoto
Background Intracranial pseudoaneurysm formation due to a ruptured non-traumatic aneurysm is extremely rare. We describe the radiological findings and management of pseudoaneurysms due to ruptured cerebral aneurysms in our case series and previously reported cases. Patients and methods Four additional and 20 reported patients presenting with subarachnoid hemorrhage (SAH) are included. Radiological findings and clinical features of these patients were reviewed. Results In our series, three-dimensional computed tomographic angiography (3D-CTA) and/or angiography showed an irregular- or snowman-shaped cavity extending from the parent artery...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28059631/acute-necrotizing-encephalopathy-causing-human-bocavirus
#4
Ayse Betul Ergul, Umit Altug, Kursad Aydin, Ahmet Sami Guven, Yasemin Altuner Torun
Acute necrotizing encephalopathy is characterized by multiple, symmetrical lesions involving the thalamus, brainstem, cerebellum, and white matter and develops secondarily to viral infections. Influenza viruses are the most common etiological agents. Here, we present the first case of acute necrotizing encephalopathy to develop secondarily to human bocavirus. A 3-year-old girl presented with fever and altered mental status. She had had a fever, cough, and rhinorrhea for five days. The patient was admitted to the intensive care unit with an initial diagnosis of encephalitis when vomiting, convulsions, and loss of consciousness developed...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28059630/carotid-ultrasound-features-of-anomalous-left-vertebral-artery-originating-from-the-aortic-arch-proximal-to-the-left-subclavian-artery
#5
Masayuki Wakita, Ran Takei, Fumio Miyashita, Yuki Hamada, Satoshi Ohyama, Hideki Matsuoka, Hiroshi Takashima
We present three cases of anomalous origin of the left vertebral artery (LVA) detected during the evaluation of stroke. The VA usually enters the transverse foramen of the sixth cervical vertebra (C6), but an anomalous LVA originating from the aorta frequently enters at a higher level. In our series, ultrasound of the LVA showed entry at C4 in two patients and at C5 in one patient. These findings suggested anomalous LVA origin, and three-dimensional computed tomography demonstrated the LVA arising from the aorta proximal to the left subclavian arteries...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28059629/extra-axial-ependymoma-of-the-cerebral-convexity-a-very-rare-intracranial-adult-tumor
#6
Soufiane Berhili, Abdellah Aissa, Selma Kadiri, Nadia Cherradi, Sanae El Majjaoui, Hanan El Kacemi, Tayeb Kebdani, Noureddine Benjaafar
Background Ependymomas are rare adult tumors that originate from the ventricular system or the ependymal surface of the central canal. Extra-axial supratentorial ependymomas are extremely rare, and only five cases have been reported to date in the English literature. Case presentation A 46-year-old previously healthy male presented with a gradual painless loss of vision in the right eye. Cerebral MRI showed a right parietal-occipital lesion resembling an atypical meningioma. Surgical resection was performed, and immunohistochemical staining results concluded that it was a very uncommon location of a grade 3 ependymoma...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28059626/giant-multi-compartmental-suprasellar-rathke-s-cleft-cyst-with-restriction-on-diffusion-weighted-images
#7
Laxminadh Sivaraju, Narayanam Anantha Sai Kiran, Arun S Rao, Nandita Ghosal, Alangar S Hegde
Rathke's cleft cysts are congenital lesions seen in sellar-suprasellar regions. We report a case of giant Rathke cyst in a 43-year-old patient with multi-compartmental involvement who presented with seizures with almost normal visual acuity. We discuss radiological and pathological features of various differential diagnoses for the giant suprasellar Rathke's cyst.
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28059621/imaging-of-sialadenitis
#8
Ahmed Abdel Khalek Abdel Razek, Suresh Mukherji
Sialadenitis is an inflammation or infection of the salivary glands that may affect the parotid, submandibular and small salivary glands. Imaging findings vary among unilateral or bilateral salivary gland enlargement, atrophy, abscess, ductal dilation, cysts, stones and calcification. Imaging can detect abscess in acute bacterial suppurative sialadenitis, ductal changes with cysts in chronic adult and juvenile recurrent parotitis. Imaging is sensitive for detection of salivary stones and stricture in obstructive sialadenitis...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28059620/persistent-trigeminal-artery-communicating-with-a-fetal-posterior-communicating-artery-a-case-report
#9
Florence L Chiang, Abdul M Zafar, Carlos Bazan
A persistent trigeminal artery (PTA) is the most common carotid-vertebrobasilar anastomosis. PTA variants terminating on cerebellar arteries instead of the basilar artery have been reported previously. We present the first case of a PTA communicating with a fetal posterior communicating artery identified on a magnetic resonance angiogram. An understanding of these anatomical variants is important to clarify pathological processes that can help guide neurosurgical and endovascular procedures.
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/27903923/stent-assisted-coil-embolization-of-a-recurrent-posterior-cerebral-artery-aneurysm-following-surgical-clipping
#10
Tomonori Takeshita, Tomoaki Nagamine, Kohei Ishihara, Yasuhiko Kaku
Posterior cerebral artery (PCA) aneurysms are rare, and direct surgery of these is considered difficult. Coil embolization of PCA aneurysms is becoming popular. However, it is difficult to completely obliterate the aneurysm while preserving the flow of the parent artery in large or giant PCA aneurysms with a wide neck with this technique. We report a case of a large and wide-necked PCA aneurysm with multiple recurrences following successful surgical clipping and coil embolization.A 77-year-old man with a large unruptured right PCA (P2) aneurysm was successfully treated by surgical clipping...
November 30, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27895201/intraorbital-wooden-foreign-body-detected-by-computed-tomography-and-magnetic-resonance-imaging
#11
Alfredo Di Gaeta, Francesco Giurazza, Eugenio Capobianco, Alvaro Diano, Mario Muto
To identify and localize an intraorbital wooden foreign body is often a challenging radiological issue; delayed diagnosis can lead to serious adverse complications. Preliminary radiographic interpretations are often integrated with computed tomography and magnetic resonance, which play a crucial role in reaching the correct definitive diagnosis. We report on a 40 years old male complaining of pain in the right orbit referred to our hospital for evaluation of eyeball pain and double vision with an unclear clinical history...
November 28, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27888275/acute-disseminated-encephalomyelitis-following-campylobacter-jejuni-gastroenteritis-case-report-and-review-of-the-literature
#12
Simone Marziali, Eliseo Picchi, Francesca Di Giuliano, Simone Altobelli, Giorgia Mataluni, Girolama Marfia, Francesco Garaci, Roberto Floris
We describe a case of a 25-year-old male with a diagnosis of acute disseminated encephalomyelitis (ADEM) following infection with Campylobacter jejuni, which is implicated in various human pathologies regarding the central nervous system (CNS) with acute course like Guillain-Barré syndrome (GBS), Miller-Fisher syndrome (MFS), Bickerstaff's brainstem encephalitis (BEE), acute transverse myelitis (ATM) as well as ADEM. These conditions are caused by cross-reactivity between Campylobacter's epitopes and cells of the CNS that causes an immunomediated inflammatory demyelination of the CNS...
November 25, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27888274/percutaneous-sacroplasty-for-the-management-of-painful-pathologic-fracture-in-a-multiple-myeloma-patient-case-report-and-review-of-the-literature
#13
A A Dmytriw, K Talla, R Smith
Percutaneous kyphoplasty has a well-established role in the treatment of pathologic fractures in patients with multiple myeloma. Despite this, there is a scarcity of literature surrounding its use and efficacy in the sacrum. We present a case of successful symptom resolution in a patient with painful sacral fracture following sacroplasty, and review the existing literature.An 81-year-man with multiple myeloma presented to the hematology/oncology clinic with a history of excruciating pain while seated. The impact of this pain on his quality of life subjectively was rated to be particularly high...
November 25, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27888273/upward-ballooning-of-the-third-ventricle-floor-in-a-patient-with-slit-ventricle-syndrome-a-unique-magnetic-resonance-imaging-finding
#14
Junya Yamaguchi, Tadashi Watanabe, Yuichi Nagata, Tetuya Nagatani, Yukio Seki
Slit ventricle syndrome (SVS) is a well-known chronic complication of ventriculoperitoneal shunt (VPS) placement. In this report, we describe a unique anatomical change that we observed on the magnetic resonance (MR) images of the brain acquired from a patient with SVS. The patient was a 40-year-old woman who had undergone VPS placement at 3 months of age. A computed tomography scan of her brain revealed a slit-like ventricle. In addition, an MR image of her brain revealed upward ballooning of the third ventricle floor, which returned to normal after a lumbar puncture...
November 25, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27881816/hypothermia-treated-neonates-with-hypoxic-ischemic-encephalopathy-optimal-timing-of-quantitative-adc-measurement-to-predict-disease-severity
#15
Yauk K Lee, Alex Penn, Mahesh Patel, Rajul Pandit, Dongli Song, Bo Yoon Ha
To determine the optimal time window for MR imaging with quantitative ADC measurement in neonatal HIE after hypothermia treatment, a retrospective review was performed on consecutive hypothermia-treated term neonates with HIE, with an initial and follow-up MR imaging within the first two weeks of life. Three neuroradiologists categorized each set of MR imaging as normal, mild, moderate or severe HIE based on a consensus review of the serial imaging. The lowest ADC values from the white matter, corpus callosum, and basal ganglia/thalamus were measured...
November 23, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27864579/automated-segmentation-reveals-silent-radiographic-progression-in-adult-onset-vanishing-white-matter-disease
#16
Thomas Huber, Marina Herwerth, Esther Alberts, Jan S Kirschke, Claus Zimmer, Ruediger Ilg
Adult-onset vanishing white-matter disease (VWM) is a rare autosomal recessive disease with neurological symptoms such as ataxia and paraparesis, showing extensive white-matter hyperintensities (WMH) on magnetic resonance (MR) imaging. Besides symptom-specific scores like the International Cooperative Ataxia Rating Scale (ICARS), there is no established tool to monitor disease progression. Because of extensive WMH, visual comparison of MR images is challenging. Here, we report the results of an automated method of segmentation to detect alterations in T2-weighted fluid-attenuated-inversion-recovery (FLAIR) sequences in a one-year follow-up study of a clinically stable patient with genetically diagnosed VWM...
November 18, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27864578/mesoscopic-imaging-of-glioblastomas-are-diffusion-perfusion-and-spectroscopic-measures-influenced-by-the-radiogenetic-phenotype
#17
Theo Demerath, Carl Philipp Simon-Gabriel, Elias Kellner, Ralf Schwarzwald, Thomas Lange, Dieter Henrik Heiland, Peter Reinacher, Ori Staszewski, Hansjörg Mast, Valerij G Kiselev, Karl Egger, Horst Urbach, Astrid Weyerbrock, Irina Mader
The purpose of this study was to identify markers from perfusion, diffusion, and chemical shift imaging in glioblastomas (GBMs) and to correlate them with genetically determined and previously published patterns of structural magnetic resonance (MR) imaging. Twenty-six patients (mean age 60 years, 13 female) with GBM were investigated. Imaging consisted of native and contrast-enhanced 3D data, perfusion, diffusion, and spectroscopic imaging. In the presence of minor necrosis, cerebral blood volume (CBV) was higher (median ± SD, 2...
November 18, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27864577/diagnosing-necrotic-meningioma-a-distinctive-imaging-pattern-in-diffusion-mri-and-mr-spectroscopy
#18
Gal Ben-Arie, Yonatan Serlin, Sebastian Ivens, Mony Benifla, Emanuela Cagnano, Israel Melamed, Vladimir Merkin, Ilan Shelef
The differential diagnosis of necrotic meningiomas includes brain abscess and malignant neoplasms. We report and discuss hereby the work-up of two patients diagnosed with necrotic meningioma using diffusion-weighted imaging, magnetic resonance spectroscopy, resective surgery, and histopathology. The purpose of the present article is to add to the scant literature on the use of advanced imaging modalities in the routine investigation of brain lesions and their utility in arriving at the final diagnosis.
November 18, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27837185/quantitative-estimation-of-a-ratio-of-intracranial-cerebrospinal-fluid-volume-to-brain-volume-based-on-segmentation-of-ct-images-in-patients-with-extra-axial-hematoma
#19
Ha Son Nguyen, Mohit Patel, Luyuan Li, Shekar Kurpad, Wade Mueller
BACKGROUND: Diminishing volume of intracranial cerebrospinal fluid (CSF) in patients with space-occupying masses have been attributed to unfavorable outcome associated with reduction of cerebral perfusion pressure and subsequent brain ischemia. OBJECTIVE: The objective of this article is to employ a ratio of CSF volume to brain volume for longitudinal assessment of space-volume relationships in patients with extra-axial hematoma and to determine variability of the ratio among patients with different types and stages of hematoma...
November 11, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27837184/mri-findings-and-cognitive-functions-in-a-small-cohort-of-myotonic-dystrophy-type-1-retrospective-analyses
#20
Arsida Bajrami, Filiz Azman, Vildan Yayla, Sultan Cagirici, Cahit Keskinkiliç, Nejla Sozer
Myotonic dystrophy type 1 (DM1) is a progressive multisystemic disease with common cognitive deficits and potential brain involvement in addition to the cardinal muscular and systemic symptoms. Impaired mental function associated with nonspecific pathological findings such as white-matter hyperintense lesions (WMHLs), ventricular enlargement and brain atrophy on brain MRI have been previously reported in DM1 patients. While some studies showed correlation of brain morphological changes with neuropsychological and clinical parameters including CTG repeat sizes and disease severity scales in DM1, others failed...
November 11, 2016: Neuroradiology Journal
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