13 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 ... Differential #Diagnosis #Radiology ... #Neurology
HIV-Associated Neurocognitive Disorder (HAND)

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

Pathophysiology:
HIV frequently
HIV dementia Pathophysiology ... similar to PML, but MRI ... Diagnosis: MRI ... The clinical syndrome ... dementia #AIDS #Neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Diagnosis- Compatible syndrome ... + MRI lesions + ... granulomatosis: • EBV-associated ... diagnosis #causes #radiology ... #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Non-neuromuscular disorder ... nervous system: Brain ... Neoplastic: Malignancy-associated ... ) studies • MRI ... Differential #Diagnosis #neurology
Vasospastic (Prinzmetal) Angina
Definition / Epidemiology:
 • Rest angina attributed to coronary artery vasospasm.
 • Patients often
younger than other ACS ... other vasospastic disorders ... Pathophysiology: ... changes on tele/ECG ... Prinzmetal #Angina #cardiology
Stiff Person Syndrome (SPS) - Diagnosis and Management Summary

Epidemiology:
 • Prevalence: 1-2 cases per million -
men • Commonly associated ... Pathophysiology ... : • Associated ... gone awry in the brain ... Management #treatment #neurology
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
parietal lobes of the brain ... may precede the neurologic ... fluctuations PRES-Associated ... Etiology: • Pathophysiology ... circulation: MCA ACA
EKG Interpretation Cheat Sheet
1) Rate 
 - Regular - Count-Off 
 - Irregular - Count number
• Lateral (I + aVL ... Normal: Upright in all ... QTc > 500 is associated ... WolffParkinson-White syndrome ... Electrocardiogram #cardiology
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Pathophysiology ... complete paralysis of all ... axonal form • MRI ... GQ1b IgG Antibody associated ... management #treatment #neurology
Widened Pulse Pressure - Differential Diagnosis and Pathophysiology

Pulse pressure is the difference between the systolic blood
Diagnosis and Pathophysiology ... Pulse pressure - associated ... • Mitchell et al ... Acute Coronary Syndrome ... #causes #cardiology