11 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... Compatible syndrome + MRI ... Infectious: ... #differential #diagnosis ... causes #radiology #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
CNS Infection in ... Diagnosis Framework ... Imaging: - MRI ... Infections in HIV ... #CNS #Infections
HIV-Associated Neurocognitive Disorder (HAND)

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

Pathophysiology:
HIV frequently
infects the CNS ... cells in the CNS ... similar to PML, but MRI ... Diagnosis: MRI ... dementia #AIDS #Neurology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
- Differential Diagnosis ... pulmonary etc) • CNS ... parainfluenza, Coxsackie, HIV ... EMG) studies • MRI ... #neurology
BEE Syndromes - Non-inflammatory Causes

Immune-mediated conditions affecting the Brain, Eye, and Ear

Visual or auditory symptoms in
nervous system (CNS ... pachymeningitis • HIV ... neuropathy (LHON) plus MRI ... lesions and clinical ... BEE #Syndromes #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
that results in CNS ... cord compression (MRI ... change on spinal MRI ... Gadolinium-enhanced MRI ... out • Brain MRI
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
equina syndrome (CES ... Differential Diagnosis ... cord infarct • HIV ... Imaging studies: • MRI ... #causes #neurology
Multiple Sclerosis - Summary

Multiple Sclerosis (MS) is an autoimmune-mediated neurodegenerative disease of the central nervous system
demyelinating lesions ... resonance imaging [MRI ... ] T2 lesions) McDonald ... • Acute: - IV ... #management #neurology
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... Diagnosis Framework ... pneumonia (PJP), MAI ... Lymphadenopathy, CNS ... involvement MAI
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... affects the skin, neurologic ... oligoclonal bands • MRI ... gray matter changes ... chorioretinitis, CNS