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CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... • Common clinical ... CSF Analysis: ... • CSF-lactate ... differential #diagnosis #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
temporal evolution, CSF ... Antimicrobial treatment ... hemorrhage • CSF ... cystic lesions • CSF ... comparable to CSF
Blastomycosis Summary

Pathogen: 
 • Dimorphic fungus - Blastomyces dermatitidis or Blastomyces gilchristii.
 • The fungus lives
The Disease: • Pulmonary ... (1%): Meningitis ... sputum, pleural fluid ... , BAL, CSF, urine ... #infectiousdiseases
Cryptococcal meningitis on T2 MRI
30 M from sub-Saharan Africa presents w/ progressive Headache x1 mo, +neck
Csf opening pressure ... low glucose) CNS ... of prior silent pulmonary ... Standard treatment ... T2 #MRI #Brain #clinical
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
especially the CNS ... MC: CNS CSF: • ... level • A low or normal ... India ink prep CSF ... ) #Mycoses #InfectiousDiseases