13 results
Evolution of stroke on CT and MRI. 

Day 1: NCHCT demonstrates obscure left insular cortex. No
Evolution of stroke ... on CT and MRI. ... #Stroke #CVA #MRI ... #Progression #Timeline ... #Neurology #Radiology
Evolution of MRI Findings in Stroke

MR images at five subsequent time points in a 67-year-old woman
Findings in Stroke ... #Progression #Stroke ... CVA #Clinical #Radiology ... Interpretation #Findings #Neurology ... #Evolution #Timeline
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Ring-Enhancing Lesions ... Compatible syndrome + MRI ... #Brain #differential ... diagnosis #causes #radiology ... #neurology
Timeline for Progression of T2WI and DWI Findings in Acute Stroke
 - In the acute phase
Timeline for Progression ... Findings in Acute Stroke ... - DWI in brain ... #Stroke #CVA #MRI ... #Neurology #Radiology
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
papilledema • Horner ... conditions: • Stroke ... Space-occupying brain ... lesion • CNS ... Diagnosis #Algorithm #neurology
Imaging Patterns of Toxic and Metabolic Brain Disorders

Thalami, Mammillary Bodies and Tectum: Wernicke Encephalopathy
Dentate Nuclei: Metronidazole,
and Metabolic Brain ... and Cingulate Cortex ... Pons: ODS #MRI ... Differential #Diagnosis #Radiology ... #Neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Impairment: • Acute stroke ... nervous system: Brain ... aminotransferases • Serology ... EMG) studies • MRI ... Differential #Diagnosis #neurology
How do you work up an ischemic CVA?
A) Initial Evaluation
 • ABCs
 • IV access, monitor
ischemic CVA (core ... a NCCT or • MRI ... brain w/o contrast ... ischemic #CVA #stroke ... diagnosis #checklist #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 ... well-defined than PML lesions ... Diagnosis: MRI ... dementia #AIDS #Neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... compressive cord lesion ... ruled out • Brain ... brain and/or optic ... diagnosis #management #neurology