9 results
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
HIV-Associated Neurocognitive Disorder (HAND)

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

Pathophysiology:
HIV frequently
through the blood-brain ... similar to PML, but MRI ... Diagnosis: MRI ... PML (JC virus) Brain ... dementia #AIDS #Neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Lack of UMN/LMN signs ... Neoplastic: Malignancy-associated ... aminotransferases • Serology ... EMG) studies • MRI ... #neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Compatible syndrome + MRI ... granulomatosis: • EBV-associated ... RingEnhancing #Lesions #Brain ... #causes #radiology ... #neurology
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
- Differential Diagnosis ... hypothalamus, and visual cortex ... : • Traumatic brain ... meningeal irritation signs ... ophthalmology #Neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
bouts of HTN Diagnostic ... • Bilateral signs ... ruled out • Brain ... brain and/or optic ... #management #neurology
Myasthenia Gravis Overview

Myasthenia Gravis is an autoimmune disorder of the postsynaptic neuromuscular junction.  Ab to
an autoimmune disorder ... Associated with: ... Myotonic dystrophy - Brain ... - Peek sign ... #management #neurology
Evaluation of Recurrent Falls

Core Concept:
Maintaining an upright posture requires the integrated function of multiple systems.
Disruption in
Recurrent Falls Core ... Oxygenation of the Brain ... positive Romberg sign ... Recurrent #Falls #Diagnosis ... Evaluation #Geriatrics #Neurology
Headaches Overview - Primary vs Secondary Headaches

What’s the Core Difference?
 • Primary headache = headache is
What’s the Core ... the mnemonic "Mi-T-C ... stiffness) • Brain ... Secondary #Comparison #Neurology ... #Diagnosis