12 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... IgG • CNS PCR ... Syphilis • Pyogenic Abscess ... #Brain #differential ... #radiology #neurology
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
MAGIC DR – a handy mnemonic used to remember the potential causes of a cerebral ring
MAGIC DR – a handy ... Metastasis A – Abscess ... multiforme I – Infarct ... Radiation necrosis #Diagnosis ... #Brain
Causes of Hypotonic Infant (Floppy Newborn) - Differential Diagnosis Algorithm
Central Nervous System - Decreased LOC, Axial
Causes of Hypotonic Infant ... Algorithm Central ... Normal Reflexes - Brain ... Intracranial Mass/lesion ... Hematoma • Abscess
HIV-Associated Neurocognitive Disorder (HAND)

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

Pathophysiology:
HIV frequently
impairment • HIV dementia ... , but MRI will show ... lesions, which ... Diagnosis: MRI ... #AIDS #Neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Algorithm Cerebral ... Cognition/Confusion, Dementia ... sensory loss Brain ... Unilateral Spinal Cord Lesions ... #Hemiplegia #Neurology
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
heart valves • MRI ... brain for cerebral ... common, Aortic root abscess ... often seen • MRI ... territory large infarct
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
- Differential Diagnosis ... focal neurologic ... Imaging: - MRI ... tuberculomas, or abscesses ... focal neurologic
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
- Differential Diagnosis ... nervous system: Brain ... abscess • Toxic ... EMG) studies • MRI ... #neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
Differential Diagnosis ... • Spinal cord infarct ... Spinal infection/abscess ... Imaging studies: • MRI ... #causes #neurology