9 results
Imaging Patterns of Toxic and Metabolic Brain Disorders

Thalami, Mammillary Bodies and Tectum: Wernicke Encephalopathy
Dentate Nuclei: Metronidazole,
and Metabolic Brain ... Encephalopathy, Cobalamin Deficiency ... Pons: ODS #MRI ... Differential #Diagnosis #Radiology ... #Neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Diagnosis- Compatible syndrome ... + MRI lesions + ... RingEnhancing #Lesions #Brain ... diagnosis #causes #radiology ... #neurology
Leigh Syndrome 
History: 19-month-old girl with hypotonia, developmental 
delay, failure to thrive, and bilateral optic disc
bilateral & symmetric T2 ... was a complex I deficiency ... #Clinical #MRI ... #Brain #Diagnosis ... #Radiology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
nervous system: Brain ... • Infectious: Brain ... endocrine: Vitamin B12 deficiency ... EMG) studies • MRI ... Differential #Diagnosis #neurology
HIV-Associated Neurocognitive Disorder (HAND)

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

Pathophysiology:
HIV frequently
and infects the CNS ... Diagnosis: MRI ... signal intensity on T2 ... The clinical syndrome ... dementia #AIDS #Neurology
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
(CES) is usually ... cord • Guillain-Barre ... Imaging studies: • MRI ... , axial T1 and T2 ... diagnosis #causes #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
that results in CNS ... spinal cord • T2 ... - Increased T2 ... • Nutritional Deficiency ... diagnosis #management #neurology
In this video, you see right sided atrophy, right sided deviation, and fasiculations R>L, indicating a
“mee-mee-mee;” CN ... MRI brain and C-spine ... feasible and he was started ... Fasciculations #PhysicalExam ... #CNXII #CN12 #Neurology
Cryptococcal meningitis on T2 MRI
30 M from sub-Saharan Africa presents w/ progressive Headache x1 mo, +neck
low glucose) CNS ... )but severe K+ deficiency ... death if ART is started ... #MRI #Brain #clinical ... #radiology