• Filter By:
• Specialty
• Source
• Condition
• Cancer
• Infectious Disease
• Drug
• Training
• Management
• Procedure
• Therapy
• Vaccine
• Nutrition
• Country

The importance of MRI in the acute phase of herpes encephalitis mimicking an acute ischemic stroke
This report highlights a case of misdiagnosed HSE, aiming to discuss the management of similar cases and underscore the relevance of MRI in the emergency setting.PMID:37524960 | DOI:10.1007/s10072-023-06969-5
Source: Herpes - July 31, 2023 Category: Infectious Diseases Authors: Anna Gardin Marco Cavallaro Angelo Labate Source Type: research

Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome mimicking herpes simplex encephalitis: A case report
Radiol Case Rep. 2022 May 8;17(7):2428-2431. doi: 10.1016/j.radcr.2022.04.019. eCollection 2022 Jul.ABSTRACTMitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome presents with the features of herpes simplex encephalitis (HSE), which is rare and has been described in only a few case reports. Our case describes a 17-year-old female with no significant previous medical history presenting with an acute onset of fever, headache, and epilepsy, similar to HSE. Computed tomography of the brain showed bilateral basal ganglia calcification. Magnetic resonance imaging demonstrated gyriform...
Source: Herpes - May 23, 2022 Category: Infectious Diseases Authors: Wen-Gao Zeng Wan-Min Liao Jue Hu Su-Fen Chen Zhen Wang Source Type: research

HSV-Encephalitis Resembling Acute Cerebral Infarction in a Patient With Atrial Fibrillation: Beware of Stroke Mimics
Conclusion: HSV-encephalitis might occasionally result in the development of unilateral brain MRI lesions with extensive cytotoxic edema, resembling an acute ischemic stroke. Therefore, HSV-encephalitis must be considered in the differential diagnosis of acute ischemic stroke with atypical presentation. The presence of a significant dissociation between the brain MRI lesion volume and the neurological deficits, as well as certain brain MRI imaging discrepancies might serve as “red flags” to extend the diagnostic workup.
Source: The Neurologist - January 1, 2022 Category: Neurology Tags: Case Report/Case Series Source Type: research

Herpes simplex virus 2 vasculitis as cause of ischemic stroke in a young immunocompromised patient
We report a case of a young woman with a left middle cerebral artery (MCA) ischemic stroke. The patient had history of HIV-1 infection, with periods of therapeutic non-compliance. Initial computed tomography (CT) imaging studies showed stenosis of the M1 segment of the left MCA, and magnetic resonance imaging (MRI) confirmed infarction of the MCA territory. Serial transcranial Doppler ultrasound revealed progressive occlusion of the MCA and stenosis of the left anterior cerebral artery. Systemic investigation for other causes of stroke was normal. Lumbar puncture revealed a mildly inflammatory cerebrospinal fluid, and HSV-...
Source: Journal of NeuroVirology - August 23, 2020 Category: Neurology Source Type: research

Magnetic resonance imaging of arterial stroke mimics: a pictorial review
AbstractAcute ischaemic stroke represents the most common cause of new sudden neurological deficit, but other diseases mimicking stroke happen in about one-third of the cases. Magnetic resonance imaging (MRI) is the best technique to identify those ‘stroke mimics’. In this article, we propose a diagnostic approach of those stroke mimics on MRI according to an algorithm based on diffusion-weighted imaging (DWI), which can be abnormal or normal, followed by the results of other common additional MRI sequences, such as T2 with gradient recall ed echo weighted imaging (T2-GRE) and fluid-attenuated inversion recovery (FLAIR...
Source: Insights into Imaging - June 22, 2018 Category: Radiology Source Type: research

Neurological Disorders Associated with Human Alphaherpesviruses.
Authors: Kawada JI Abstract Herpes simplex virus (HSV) encephalitis is the most common cause of sporadic fatal encephalitis worldwide, and central nervous system (CNS) involvement is observed in approximately one-third of neonatal HSV infections . In recent years, single-gene inborn errors of innate immunity have been shown to be associated with susceptibility to HSV encephalitis . Temporal lobe abnormalities revealed by magnetic resonance imaging-the most sensitive imaging method for HSV encephalitis-are considered strong evidence for the disease. Detection of HSV DNA in the cerebrospinal fluid by polymerase chain...
Source: Advances in Experimental Medicine and Biology - June 15, 2018 Category: Research Tags: Adv Exp Med Biol Source Type: research

What Causes Hyperammonemia?
Discussion Reye’s syndrome (RS)is named for Dr. Douglas Reye who along with Drs. G. Morgan and J. Baral described encephalopathy and fatty accumulation and degeneration in children in a 1963 Lancet article. RS usually affects children but can occur at all ages. All organs can be affected but the liver and brain are primarily affected causing liver failure and encephalopathy as toxic metabolites (especially ammonia) accumulate, and intracranial hypertension and cerebral edema occurs. As the ammonia levels begin to rise (> 100 mg/dL) patients lose their appetite, have nausea and emesis and mental status changes whic...
Source: PediatricEducation.org - February 20, 2017 Category: Pediatrics Authors: pediatriceducationmin Tags: Uncategorized Source Type: news

What Genetics are Associated with Multiple Sclerosis?
Discussion Multiple sclerosis (MS) is “a chronic degenerative, often episodic disease of the central nervous system marked by patchy destruction of the myelin that surrounds and insulates nerve fibers, usually appearing in young adulthood and manifested by one or more mild to severe neural and muscular impairments, as spastic weakness in one or more limbs, local sensory losses, bladder dysfunction, or visual disturbances.” It is a chronic disease and therefore symptoms must occur more than once. The first episode is called an acute demyelinating attack. Fifteen to forty-five percent of children with their first...
Source: PediatricEducation.org - April 4, 2016 Category: Pediatrics Authors: pediatriceducationmin Tags: Uncategorized Source Type: news

A Case of Transient Global Amnesia: A Review and How It May Shed Further Insight into the Neurobiology of Delusions
Conclusion In closing, our patient’s episode of TGA combined with her emotional and perceptual response lends credence to the proposal of a “fear/paranoia” circuit in the genesis of paranoid delusions—a circuit incorporating amygdala, frontal, and parietal cortices. Here, neutral or irrelevant stimuli, thoughts, and percepts come to engender fear and anxiety, while dysfunction in frontoparietal circuitry engenders inappropriate social predictions and maladaptive inferences about the intentions of others.[54] Hippocampus relays information about contextual information based on past experiences and the current situat...
Source: Innovations in Clinical Neuroscience - April 1, 2016 Category: Neuroscience Authors: ICN Online Editor Tags: Anxiety Disorders Behavioral and Cognitive Neurology Case Report Cognition Current Issue Dementia Medical Issues Neurologic Systems and Symptoms Psychiatry Schizophrenia delusions hippocampus neurobiology Transient global amnesia Source Type: research

Valacyclovir and Acyclovir Neurotoxicity With Status Epilepticus
We present the case of a 52-year-old man with hypertension, diastolic congestive heart failure, end-stage renal disease on hemodialysis 3 times a week and a remote history of a hemorrhagic stroke who presented to the emergency department with a vesicular rash on his left arm. The rash was observed to be in a dermatomal distribution, and a diagnosis of herpes zoster was made. The patient was discharged home on valacyclovir 1 g 3 times a day for a duration of 7 days. The patient took 2 doses of valacyclovir before presenting to the hospital again with irritability and hallucinations. Over the next several days, the patient's...
Source: American Journal of Therapeutics - January 1, 2016 Category: Drugs & Pharmacology Tags: Case Reports Source Type: research

Meningeal Disease Masquerading as Transient Ischemic Attack
Conclusions: Our study confirmed that serious meningeal disease could present as TIA, but this disease was relatively uncommon among patients treated in a TIA clinic. The findings highlight the diagnostic value of MRI in patients with suspected TIA.
Source: Journal of Stroke and Cerebrovascular Diseases - April 25, 2014 Category: Neurology Authors: Line Cuinat, Nathalie Nasr, Jeanine Manuela Kamsu, Frédéric Tanchoux, Fabrice Bonneville, Vincent Larrue Tags: Case Reports Source Type: research

What Causes Ataxia?
Discussion Coordination and balance problems are caused by various problems affecting the central and peripheral nervous system. Normal development of a child or weakness of a child are commonly mistaken for true ataxia. Ataxia specifically refers to “…impairment of the coordination of movement without loss of muscle strength.” If it is purely due to abnormalities of the cerebellum then there should be no changes in mental status, sensation or weakness. Sometimes it is difficult to determine if there are abnormalities in other areas. For example, Guillian-Barre often presents with difficulty or clumsy wal...
Source: PediatricEducation.org - March 31, 2014 Category: Pediatrics Authors: pediatriceducationmin Tags: Uncategorized Source Type: news

Analysis of a series of cases with an initial diagnosis of acute disseminated encephalomyelitis over the period 2000-2010.
CONCLUSIONS. ADEM may present at any age, including in infants. There are a number of conditions that can mimic ADEM in the early stages. PMID: 24052440 [PubMed - in process]
Source: Revista de Neurologia - September 21, 2013 Category: Neurology Authors: Rodriguez-Fernandez C, Lopez-Marin L, Lopez-Pino MA, Gutierrez-Solana LG, Soto-Insuga V, Conejo-Moreno D Tags: Rev Neurol Source Type: research