11 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
PCR 50% sensitive ... lymphoproliferative disease ... #Brain #differential ... diagnosis #causes #radiology ... #neurology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Diagnosis should be based ... Demyelinating disease ... of the abducens nerve ... #differential #
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Lack of UMN/LMN signs ... parainfluenza, Coxsackie, HIV ... #Weakness #Differential ... #Diagnosis #neurology
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
PCP with valacyclovir ... initial forehead lesions ... the condition, case ... ophthalmology #physicalexam ... #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 ... • Infiltrating base ... LHON) plus MRI lesions ... BEE #Syndromes #neurology
Neurological Manifestations of Tuberculosis
Spinal Arachnoiditis & Polyradiculopathy:
 • Subacute onset of limb weakness, bladder/bowel dysfunction, muscle
spinal cord and nerve ... Pott's Disease ... (IRIS): • In HIV ... or abruptly • CN ... Tuberculosis #diagnosis #differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... purpura: Strong sign ... affects the skin, neurologic ... muscle weakness • Nerves ... chorioretinitis, CNS
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
- Differential ... Diagnosis Framework Disease ... angioinvasive disease ... • CT: Halo sign ... Lymphadenopathy, CNS
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... (AG) = {Na - (Cl ... acidosis: - CNS ... restrictive lung disease ... bloodgas #Acid #Base
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
that results in CNS ... • Bilateral signs ... brain and/or optic nerve ... simplex virus, HIV ... #differential