20 results
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
Lesions of the Spinal ... Syndromes Spinal ... cord injury. ... Causes of spinal ... cord injury -
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
of the spinal cord ... to the spinal cord ... spinal MRI • ... lesionBilateral ... of the spinal cord
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Spinal Cord Disorders ... : • Bilateral ... below the site of injury ... Cord Causes: 1 ... MCTD, Sjogren syndrome
Upper Motor Neuron (UMN) lesions are lesions occurring anywhere in the CNS from the brain up
the CNS from the brain ... pathology and muscle disorders ... may mimic an LMN disorder ... LMN syndromes are ... This lesion causes
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Diagnosis- Compatible syndrome ... + MRI lesions + ... #Brain #differential ... #diagnosis #causes ... #radiology #neurology
Causes of Hemiplegia - Differential Diagnosis Algorithm
Cerebral Hemisphere (Contralateral motor cortex)
 • Aphasia
 • Apraxia
 •
Causes of Hemiplegia ... sensory loss Brain ... findings Unilateral Spinal ... Cord Lesions Above ... Brown-Sequard Syndrome
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... cord infarct ... spondylitis • Tethered cord ... Imaging studies: • MRI ... #neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Non-neuromuscular disorder ... nervous system: Brain ... of the spinal cord ... • Infectious: Brain ... EMG) studies • MRI
Leigh Syndrome 
History: 19-month-old girl with hypotonia, developmental 
delay, failure to thrive, and bilateral optic disc
Leigh Syndrome ... Mitochondrial disorder ... #Clinical #MRI ... #Brain #Diagnosis ... #Radiology
HIV-Associated Neurocognitive Disorder (HAND)

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

Pathophysiology:
HIV frequently
similar to PML, but MRI ... white matter lesions ... Diagnosis: MRI ... areas of high signal ... The clinical syndrome