13 results
Algorithm for evaluating multiple ring-enhancing lesions in immunocompetent (HIV negative)

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
immunocompetent (HIV ... negative) #ringenhancing ... #lesions #cns # ... #algorithm #causes ... #radiology #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Imaging: - MRI ... Demyelinating disease caused ... #differential # ... opportunistic #InfectiousDiseases
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... Compatible syndrome + MRI ... Lesions #Brain #differential ... #diagnosis #causes ... #radiology #neurology
HIV-Associated Neurocognitive Disorder (HAND)

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

Pathophysiology:
HIV frequently
dementia Pathophysiology ... and infects the CNS ... similar to PML, but MRI ... Diagnosis: MRI ... dementia #AIDS #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 ... BEE #Syndromes #neurology ... noninflammatory #differential
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... that results in CNS ... tested and if negative ... simplex virus, HIV ... #differential
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Herpesviruses (MCC: HSV ... in 70%-85% • Negative ... Singh @rav7ks #CNS ... #diagnosis #neurology
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential ... Lymphadenopathy, CNS ... factor • May cause ... AIDS #pulmonary #differential ... #diagnosis #infectiousdiseases
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 ... - Emergency Causes ... cord infarct • HIV ... Imaging studies: • MRI ... #neurology
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
lateral sclerosis Pathophysiology ... - Causes progressive ... MRI: Brain, cervical ... conditions listed in differential ... Lateral #Sclerosis #neurology