376 results match your criteria Brain MRI Appearance of Hemorrhage

Susceptibility Weighted Imaging: An Effective Auxiliary Sequence That Enhances Insight Into the Imaging of Stroke.

Cureus 2022 May 11;14(5):e24918. Epub 2022 May 11.

Department of Radiology, Dr. D Y Patil Medical College, Hospital and Research Centre, Pune, IND.

Aim: To evaluate the utility of susceptibility-weighted imaging (SWI) sequence in stroke imaging and assess supplemental information provided by SWI in an acute stroke scenario.

Materials And Methods: In this study, the appearance of cerebrovascular stroke on the SWI images were analyzed in 50 patients who presented with acute-onset neurological symptoms.

Results: Brain MRI with SWI was performed on 50 patients presenting with acute neurological symptoms. Read More

View Article and Full-Text PDF

Ipsilateral blooming of microbleeds after Hyperintense Acute Reperfusion Marker sign in an ischemic Stroke patient, a case report.

BMC Neurol 2022 Apr 14;22(1):142. Epub 2022 Apr 14.

Versailles Hospital, Neurology and Stroke Care Unit, Le Chesnay, France.

Background: Hyperintense Acute Reperfusion Marker (HARM) is a hyperintense subarachnoid signal on FLAIR MRI sequence caused by gadolinium contrast leakage into the subpial space. While, on FLAIR, HARM may mimic subarachnoid hemorrhage, it is differentiated from it on computed tomography (CT) and SWAN MRI sequences. Cerebral microbleeds are black, rounded spots on SWAN caused by blood-products deposition following red blood cell leakage from small cerebral vessels brain. Read More

View Article and Full-Text PDF

Rosai-Dorfman disease mimicking subdural hematoma: a case report.

J Int Med Res 2022 Mar;50(3):3000605221083750

Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Rosia-Dorfman disease (RDD) is a rare benign disease with exceedingly rare neural involvement. In this report, we describe a very rare case of intracranial RDD mimicking a subdural hematoma. The patient presented with headache and a suspected history of head injury. Read More

View Article and Full-Text PDF

Correlation of radiological features of white epidermoid cysts with histopathological findings.

Sci Rep 2022 02 10;12(1):2314. Epub 2022 Feb 10.

Kingston Health Sciences Centre, Queen's University, Kingston, Canada.

Epidermoid cysts are benign congenital extra-axial lesions commonly found in the posterior fossa. These lesions have a characteristic imaging appearance on computed tomography (CT) scan and magnetic resonance imaging (MRI), but occasionally they may exhibit atypical radiological features, showing unusual hyperintensity on T1-weighted images (T1WI). Currently, such atypical appearance is referred to as white epidermoid. Read More

View Article and Full-Text PDF
February 2022

Acute haemorrhagic leukoencephalitis (AHLE) - our experience and a short review.

J Neuroimmunol 2021 12 13;361:577751. Epub 2021 Oct 13.

Department of Neuropathology, National Institute of Mental Health and Neuroscience (NIMHANS), Bangalore, India.

Background: Acute haemorrhagic leukoencephalitis (AHLE), a rare variant of acute disseminated encephalomyelitis (ADEM), often presents differently from classical ADEM, thereby posing a diagnostic challenge to the clinician.

Aim: To report AHLE, its clinic-radiological manifestations, process of diagnosis and prognosis.

Method And Results: Eight patients presented with altered sensorium, acute focal deficits with or without seizures. Read More

View Article and Full-Text PDF
December 2021

Cockayne syndrome type: a very rare association with hemorrhagic stroke.

Turk J Pediatr 2021;63(5):922-926

Departments of Pediatric Neurology, İstanbul Medeniyet University Faculty of Medicine, Göztepe Training and Research Hospital, İstanbul, Turkey.

Background: Cockayne Syndrome (CS) is a rare autosomal recessive disorder that is mainly characterized by neurodevelopmental delay, cutaneous photosensitivity, and cachectic dwarfism. Genetic diagnosis is supported by the typical physical appearance and imaging findings of these patients.

Case: In our case, a 16-year-old female previously diagnosed as CS presented with right-sided hemiparesis. Read More

View Article and Full-Text PDF
January 2022

MRI findings at neurological onset predict neurological prognosis in hemorrhagic shock and encephalopathy syndrome.

J Neurol Sci 2021 Nov 30;430:120010. Epub 2021 Sep 30.

Department of Pediatrics, Aizenbashi Hospital, Osaka, Japan.

Background: Hemorrhagic shock and encephalopathy syndrome (HSES) is a devastating disease and has an uncertain pathogenesis. The aim of this study was to predict neurological outcomes for HSES using magnetic resonance imaging (MRI) findings at neurological onset and elucidate the pathophysiology of HSES in the acute phase from serial MRI changes.

Materials And Methods: We analyzed the MRI findings of 13 patients who underwent an initial MRI within 24 h of neurological onset. Read More

View Article and Full-Text PDF
November 2021

Primary Intramedullary Spinal Melanoma: A Rare Disease of the Spinal Cord.

Cureus 2021 Jul 5;13(7):e16194. Epub 2021 Jul 5.

Hematology and Medical Oncology, Albany Medical Center, Albany, USA.

Primary malignant melanoma of the intramedullary region of the spinal cord has rarely been reported in the literature. These tumors can have variable appearance on magnetic resonance imaging (MRI) due to different extents of melanin and hemorrhage. Histopathologic confirmation and a comprehensive workup to rule out extra-spinal melanoma are required to make definitive diagnosis. Read More

View Article and Full-Text PDF

Clinical, neuroradiological and genetic findings in a cohort of patients with multiple Cerebral Cavernous Malformations.

Metab Brain Dis 2021 10 6;36(7):1871-1878. Epub 2021 Aug 6.

Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.

Cerebral cavernous malformations (CCM) consist of clusters of irregular dilated capillaries and represent the second most common type of vascular malformation affecting the central nervous system. CCM might be asymptomatic or cause cerebral hemorrhage, seizures, recurrent headaches and focal neurologic deficits. Causative mutations underlining CCM have been reported in three genes: KRIT1/CCM1, MGC4607/CCM2 and PDCD10/CCM3. Read More

View Article and Full-Text PDF
October 2021

Primary Central Nervous System Lymphoma: A Case of Solitary Brain Lesion.

Cureus 2021 Jun 27;13(6):e15966. Epub 2021 Jun 27.

Internal Medicine, University of Pittsburgh Medical Center Pinnacle, Harrisburg, USA.

Primary central nervous system lymphoma (PCNSL) is an uncommon variant of extranodal non-Hodgkin's lymphoma (NHL) that involves the brain, leptomeninges, eyes, or spinal cord without evidence of systemic disease. This article presents a case of a 63-year-old Caucasian female with high-grade B-cell lymphoma who was found to have a solitary brain lesion and no distant metastasis upon diagnosis. The patient had left-sided weakness and difficulty standing on presentation and was found to have a right frontal lobe mass with surrounding mild vasogenic edema and a small focal area of hemorrhage concerning for high-grade glioma versus lymphoma on MRI. Read More

View Article and Full-Text PDF

Interrater Reliability of National Institutes of Health Traumatic Brain Injury Imaging Common Data Elements for Brain Magnetic Resonance Imaging in Mild Traumatic Brain Injury.

J Neurotrauma 2021 10;38(20):2831-2840

Department of Radiology and Biomedical Imaging, University of California, San Francisco, California, USA.

The National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH-NINDS) Traumatic Brain Injury (TBI) Imaging Common Data Elements (CDEs) are standardized definitions for pathological intracranial lesions based on their appearance on neuroimaging studies. The NIH-NINDS TBI Imaging CDEs were designed to be as consistent as possible with the U.S. Read More

View Article and Full-Text PDF
October 2021

CT-negative Subarachnoid Hemorrhage Caused by Telangiectasia: A Case Report.

Curr Med Imaging 2021 ;17(10):1262-1265

Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun City, Jilin Province, China.

Introduction: At present, the mechanism of telangiectasia is unknown, but some evidence suggests that it may be related to genetic abnormalities. Telangiectasia may lead to bleeding of multiple sites. CT-negative subarachnoid hemorrhage is rare, which is mostly related to hemorrhage with a little amount of bleeding. Read More

View Article and Full-Text PDF
December 2021

Up-To-Date Magnetic Resonance Imaging Findings for the Diagnosis of Hypothalamic and Pituitary Tumors.

Yonago Acta Med 2021 May 16;64(2):155-161. Epub 2021 Apr 16.

Division of Neurosurgery, Department of Brain and Neurosciences, School of Medicine, Faculty of Medicine, Tottori University, Yonago 683-8504, Japan.

Magnetic resonance imaging (MRI) is the preferred imaging technique for the sellar and parasellar regions. In this review article, we report our clinical experience with MRI for hypothalamic and pituitary lesions, such as pituitary adenomas, craniopharyngiomas, Rathke cleft cysts, germinoma, and hypophysitis with reference to the histopathological findings through a review of the literature. Our previous study indicated that three dimensional-spoiled gradient echo sequence is a more suitable sequence for evaluating sellar lesions on postcontrast T1 weighted image (WI). Read More

View Article and Full-Text PDF

Cranial ultrasound for beginners.

Transl Pediatr 2021 Apr;10(4):1117-1137

Unidad de Radiología Pediátrica, Servicio de Radiodiagnóstico, Hospital Universitario y Politécnico La Fe, Valencia, Spain.

Cranial ultrasound (CUS) is an extremely valuable tool to evaluate the brain during the first year of life, in experienced hands. It is the initial screening imaging tool to evaluate the infants' brain and complementary to the use of computed tomography (CT) and magnetic resonance imaging (MRI). It is an accessible, inexpensive and harmless technique that can be used bedside as frequently as needed. Read More

View Article and Full-Text PDF

Neuroradiologic timing of intracranial hemorrhage in abusive head trauma.

Pediatr Radiol 2021 May 17;51(6):911-917. Epub 2021 May 17.

Department of Radiology, Penn State Health College of Medicine, Hershey, PA, USA.

Determining the timing of intracranial injuries in general, and abusive head trauma (AHT) in particular, is important to the care of children with traumatic brain injury. Additionally, identifying the time of the injury provides important information as to who might have, and who did not, inflict the trauma. Understanding the appearance and evolution of intracranial findings on neuroimaging has been an important factor in assessing the time of the injury. Read More

View Article and Full-Text PDF

Case report and literature review: antenatal diagnosis of a fetal anaplastic astrocytoma.

J Matern Fetal Neonatal Med 2021 May 9:1-7. Epub 2021 May 9.

Department of Ultrasound, The School of Clinical Medicine, Fujian Medical University, Fuzhou, China.

Objectives: To describe the ultrasonographic appearance of congenital anaplastic astrocytoma, so as to provide diagnostic clues for it. An updated review of the literature was also carried out.

Results: There was a case of fetal anaplastic astrocytoma detected by ultrasound at 37 + 1 weeks of gestation. Read More

View Article and Full-Text PDF

Somatic MAP3K3 and PIK3CA mutations in sporadic cerebral and spinal cord cavernous malformations.

Brain 2021 10;144(9):2648-2658

State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Cavernous malformations affecting the CNS occur in ∼0.16-0.4% of the general population. Read More

View Article and Full-Text PDF
October 2021

Moyamoya: An Update and Review.

Cureus 2020 Oct 16;12(10):e10994. Epub 2020 Oct 16.

Neurosurgery, Desert Regional Medical Center, Palm Springs, USA.

This article is a clinical review of Moyamoya disease (MMD) and Moyamoya syndrome (MMS). We review the incidence, epidemiology, pathology, historical context, clinical and radiographic findings, diagnostic imaging modalities, radiographic grading systems, the effectiveness of medical, interventional, and surgical treatment, and some of the nuances of surgical treatment options. This article will help pediatricians, neurologists, neurosurgeons, and other clinical practitioners who are involved in caring for patients with this rare clinical entity. Read More

View Article and Full-Text PDF
October 2020

Cerebral cavernous malformation in a patient with pontine hemorrhage: A case study.

Clin Pract 2020 Sep 21;10(3):1211. Epub 2020 Sep 21.

Department of Neurology.

The cerebral cavernous malformations are benign vascular hamartomas, with thin and dilated vascular walls and therefore constantly susceptible to hemorrhage. Clinically, they present with recurrent headaches, acute intracranial hemorrhage and focal neurological deficits. They are considered as and the imaging technique of choice for their diagnosis is magnetic resonance tomography. Read More

View Article and Full-Text PDF
September 2020

A verified period of normal neurologic status in a young victim of abusive head trauma.

J Forensic Leg Med 2020 Aug 18;74:102024. Epub 2020 Jul 18.

Children's Mercy Hospital, Kansas City, MO, United States. Electronic address:

Abusive head trauma (AHT) is the leading cause of child physical abuse fatalities, and survivors frequently face life-long consequences. Victims of AHT are typically infants, and many are subjected to repeat AHT if not accurately identified and protected. Identifying the timing of AHT is often a medical-forensic process, and investigative personnel use the determination of timing of AHT to guide safety decisions for the child victim. Read More

View Article and Full-Text PDF

Severe cerebral edema induced by watershed shift after bypass in a patient with chronic steno-occlusive disease: a case report and short literature review.

BMC Neurol 2020 Sep 5;20(1):335. Epub 2020 Sep 5.

Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, No. 88 Jiefang Rd, Hangzhou, 310009, China.

Background: Carotid occlusive disease is a type of progressive disease resulting in ischemic stroke. Extracranial-intracranial bypass surgery represents a valid therapeutic option when medical treatment does not make effects. The appearance of cerebral edema following bypass is common during acute stage. Read More

View Article and Full-Text PDF
September 2020

Conventional and Advanced Magnetic Resonance Imaging Features of Supratentorial Extraventricular Ependymomas.

J Comput Assist Tomogr 2020 Sep/Oct;44(5):692-698

From the Department of Neuroimaging and interventional Radiology.

Objective: To describe the magnetic resonance imaging characteristics of supratentorial ependymomas.

Methods: The magnetic resonance imaging and computed tomography imaging characteristics of 49 cases of supratentorial ependymomas were analyzed retrospectively. The location, size, degree of perilesional edema, gross appearance, computed tomography attenuation characteristics, T1 and T2 signal intensity characteristics, degree of diffusion restriction, presence of calcification, and hemorrhage were documented for each lesion. Read More

View Article and Full-Text PDF
September 2020

Cerebral Microbleeds Are Associated with Loss of White Matter Integrity.

AJNR Am J Neuroradiol 2020 08 23;41(8):1397-1404. Epub 2020 Jul 23.

From the Departments of Neurology (J.-Y.L., Y.-J.Z., F.-F.Z., F.H., L.-X.Z., J.N., M.Y., L.C., Y.-C.Z.), Radiology (Z.J.), and Cardiology (S.Z.), Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Science, Beijing, China.

Background And Purpose: Previous studies have shown that diffusion tensor imaging suggests a diffuse loss of white matter integrity in people with white matter hyperintensities or lacunes. The purpose of this study was to investigate whether the presence of cerebral microbleeds and their distribution are related to the integrity of white matter microstructures.

Materials And Methods: The study comprised 982 participants who underwent brain MR imaging to determine microbleed status. Read More

View Article and Full-Text PDF

Familial cerebral cavernous malformation presenting with epilepsy caused by mutation in the CCM2 gene: A case report.

Medicine (Baltimore) 2020 Jul;99(29):e19800

Department of Neurology, Faculty of Medicine, University of Tsukuba, 1-1-1, Tennnoudai, Tsukuba, Ibaraki, 305-8575.

Rationale: Cerebral cavernous malformation (CCM) of the familial type is caused by abnormalities in the CCM1, CCM2, and CCM3 genes. These 3 proteins forming a complex associate with the maintenance of vascular endothelial cell-cell junctions. Dysfunction of these proteins results in the development of hemangiomas and abnormal intercellular junctions. Read More

View Article and Full-Text PDF

Susceptibility weighted imaging at 1.5 Tesla magnetic resonance imaging in dogs: Comparison with T2*-weighted gradient echo sequence and its clinical indications.

Vet Radiol Ultrasound 2020 Sep 14;61(5):566-576. Epub 2020 Jul 14.

Willows Referral Centre, Solihull, UK.

Susceptibility weighted imaging (SWI) is a high resolution, fully velocity-compensated, three-dimensional gradient echo (GE) MRI technique. In humans, SWI has been reported to be more sensitive than T2*-weighted GE sequences in the identification of both intracranial hemorrhage and intra-vascular deoxyhemoglobin. However, published clinical studies comparing SWI to T2*-weighted GE sequences in dogs are currently lacking. Read More

View Article and Full-Text PDF
September 2020

Cerebrovascular disease in patients with COVID-19: neuroimaging, histological and clinical description.

Brain 2020 10;143(10):3089-3103

Department of Neurology, Hospital General Universitario de Albacete, Albacete, Spain.

Since the appearance of the first case of coronavirus disease 2019 (COVID-19) a pandemic has emerged affecting millions of individuals worldwide. Although the main clinical manifestations are respiratory, an increase in neurological conditions, specifically acute cerebrovascular disease, has been detected. We present cerebrovascular disease case incidence in hospitalized patients with SARS-CoV-2 infection. Read More

View Article and Full-Text PDF
October 2020

Radiologic Differentiation of Primary CNS Posttransplant Lymphoproliferative Disorder From Brain Metastasis.

AJR Am J Roentgenol 2020 07 29;215(1):184-191. Epub 2020 Apr 29.

Department of Pathology, University of Nebraska Medical Center, Omaha, NE.

Primary CNS posttransplant lymphoproliferative disorder (PTLD) may present as multiple contrast-enhancing intraaxial lesions, often with central necrosis and surrounding edema. This imaging appearance is similar to the pattern seen in brain metastases. The purpose of this study was to find differences in the radiologic features of primary CNS PTLD lesions and brain metastases. Read More

View Article and Full-Text PDF

Onscreen-guided resection of extra-axial and intra-axial forebrain masses through registration of a variable-suction tissue resection device with a neuronavigation system.

Vet Surg 2020 May 27;49(4):676-684. Epub 2020 Mar 27.

Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado.

Objectives: To describe a novel surgical technique in which neuronavigation is used to guide a tissue resection device during excision of forebrain masses in locations difficult to visualize optically.

Study Design: Short case series.

Animals: Six dogs and one cat with forebrain masses (five neoplastic, two nonneoplastic) undergoing excision with a novel tissue resection device and veterinary neuronavigation system. Read More

View Article and Full-Text PDF

Checkerboard Visual Field Defect in Occipital Stroke.

J Neuroophthalmol 2020 06;40(2):e13-e14

McGovern Medical School (SK), Houston, Texas; Department of Ophthalmology (BAAO, ATK, AGL), Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas; Departments of Ophthalmology, Neurology, and Neurosurgery (AGL), Weill Cornell Medicine, New York, New York; Department of Ophthalmology (AGL), University of Texas Medical Branch, Galveston, Texas; University of Texas MD Anderson Cancer Center (AGL), Houston, Texas; Department of Ophthalmology (AGL), Texas A and M College of Medicine, Bryan, Texas; and Department of Ophthalmology (AGL), The University of Iowa Hospitals and Clinics, Iowa City, Iowa.

A 74-year-old man with vasculopathic risk factors presented to the emergency room with a chief complaint of peripheral vision loss resulting from an intracranial hemorrhage in his right parietal and occipital lobes. Urgent craniotomy and ventriculostomy led to a stable clinical condition with subsequent development of a crossed quadrant homonymous hemianopsia (checkerboard visual field) due to a new right parieto-occipital infarct superimposed on a prior left occipital infarct. This uncommon visual field defect represents juxtaposed homonymous quadrantanopias that produce a striking checkerboard appearance that is almost pathognomonic for bilateral occipital lesions. Read More

View Article and Full-Text PDF

Clinical-radiological correlations in a de novo cavernous angioma with pseudotumor-like behavior.

Radiologia (Engl Ed) 2020 May - Jun;62(3):243-247. Epub 2020 Jan 25.

Servicio de Neurología, Complejo Hospitalario Universitario de Albacete, Albacete, España.

Cavernous angiomas are cerebral vascular malformations that are usually congenital. These lesions are characterized as dynamic. The most common phenomenon in the course of these lesions is bleeding, which can result in significant fluctuations in their size and even lead to their disappearance. Read More

View Article and Full-Text PDF