19 results
MRI Brain Sequence Comparison: T1 vs T2 vs FLAIR
T1:
 - CSF is Dark
 - Grey Matter
MRI Brain Sequence ... Devpriyo Pal @drdevrad ... T1 #T2 #FLAIR #MRI ... clinical #radiology #diagnosis ... #neurology
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
Causes of Seizures ... - Differential Diagnosis ... vasoconstriction syndrome ... Neurocysticercosis, PML ... #neurology
BEE Syndromes - Immune-mediated conditions affecting the brain, eye, and ear

Visual or auditory symptoms in conjunction
affecting the brain ... Inflammatory causes ... • MOG antibody-associated ... #neurology #inflammatory ... #differential #diagnosis
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
- Compatible syndrome ... + MRI lesions + ... granulomatosis: • EBV-associated ... #causes #radiology ... #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Cauda Equina Syndrome ... - Emergency Causes ... Differential Diagnosis ... Imaging studies: • MRI ... #causes #neurology
HIV-Associated Neurocognitive Disorder (HAND)

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

Pathophysiology:
HIV frequently
, but MRI will show ... Diagnosis: MRI ... (JC virus) Brain ... The clinical syndrome ... dementia #AIDS #Neurology
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Reflexes: • Knee ... Conditions: • Cauda ... Equina Syndrome ... Commonly caused ... #neurology #sensory
BEE Syndromes - Non-inflammatory Causes

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

Visual or auditory symptoms in
Non-inflammatory Causes ... affecting the Brain ... Non-inflammatory causes ... neuropathy (LHON) plus MRI ... #neurology #noninflammatory
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Epidemiology: • 1-2 cases ... axonal form • MRI ... nerve roots and cauda ... GQ1b IgG Antibody associated ... #treatment #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
- Differential Diagnosis ... nervous system: Brain ... Neoplastic: Malignancy-associated ... EMG) studies • MRI ... #neurology