21 results
Imaging Patterns of Toxic and Metabolic Brain Disorders

Thalami, Mammillary Bodies and Tectum: Wernicke Encephalopathy
Dentate Nuclei: Metronidazole,
and Metabolic Brain ... Pons: ODS #MRI ... Toxicology #Metabolic #Brain ... #Disorders #Clinical ... #Neurology
Leigh Syndrome 
History: 19-month-old girl with hypotonia, developmental 
delay, failure to thrive, and bilateral optic disc
Leigh Syndrome ... Mitochondrial disorder ... #Clinical #MRI ... #Brain #Diagnosis ... #Radiology
HIV-Associated Neurocognitive Disorder (HAND)

Definition:
HIV-Associated Neurocognitive disorders categories:
• Asymptomatic neurocognitive impairment
• Mild neurocognitive impairment
• HIV dementia

Pathophysiology:
HIV frequently
similar to PML, but MRI ... Diagnosis: MRI ... : The clinical ... syndrome of HAD ... reversible • HAND is also
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
an autoimmune disorder ... Myotonic dystrophy - Brain ... Generalized fatigue - ALS ... - Peek sign ... Imaging - CT Chest
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Non-neuromuscular disorder ... nervous system: Brain ... • Infectious: Brain ... Lack of UMN/LMN signs ... EMG) studies • MRI
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Diagnosis- Compatible syndrome ... + MRI lesions + ... lung nodules, may also ... RingEnhancing #Lesions #Brain ... #neurology
Congenital Cytomegalovirus Infection- Ultrasonographic images showed ventricular dilatation in the fetal brain, and T2-weighted magnetic resonance
dilatation in the fetal brain ... the newborn’s brain ... #clinical #NEJM ... #radiology #MRI ... #CT #computed #tomography
Restrictive Cardiomyopathy - Diagnosis and Causes
Clinical: Dyspnea, Exercise Intolerance, ↑ "Right Sided-Symptoms" (ascites, hepatomegaly, ↑↑peripheral edema)
Physical
Diagnosis and Causes Clinical ... : Amyloidosis (AL ... Hyper-eosinophilc Syndrome ... Sarcomeric Protein Disorders ... #differential #cardiology
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
affecting the Brain ... is important, as ... neuropathy (LHON) plus MRI ... lesions and clinical ... #neurology #noninflammatory
CNS Manifestations of Systemic Lupus Erythematosus (SLE)

Clinical Manifestations: Demyelinating Syndrome, Headache, Movement disorders, Seizure disorders, Aseptic
Erythematosus (SLE) Clinical ... Demyelinating Syndrome ... , Seizure disorders ... thrombosis and/or blood-brain ... (for secondary APS