13 results
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
Approach to Headaches ... - Differential ... papilledema • Horner syndrome ... brain lesion • CNS ... #Differential #
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Symptoms: Fever, headache ... Symptoms: Fever, headache ... #Infections #differential ... #diagnosis #AIDS
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Heat Stroke - Differential ... sensations - Headache ... cardiomyopathy, ARDS ... Disorientation, Headache ... heat #illness #differential
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
characterized by: • Headache ... mental status • Headache ... narrowing on MRA/CTA ... Reversible course Differential ... Seizures: Treat with AEDs
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
Behçet's Syndrome ... basal ganglia, CNS ... meningitis), MCC CNS ... symptoms (headache ... Behcet disease) Differential
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... : Atelectasis, ARDS ... Hypoxia #hypoxemia #differential
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Infections in HIV - Differential ... Pneumonia: • 3 syndromes ... of a "flu-like syndrome ... cough, myalgias, headache ... Infections #HIV #AIDS
Hypertrophic Pachymeningitis - Differential Diagnosis Framework

Pachymeningitis is a rare condition that causes areas of a layer
Pachymeningitis - Differential ... vision changes, headaches ... metastases CT ... brain sagging syndrome ... HP #Neurology #differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... 50 years • New headache ... Progressive symptoms of headache ... #Vasculitis #Differential
Waterborne Infections - Differential Diagnosis Framework

Infections that can be acquired from fresh water, brackish water, sea
Waterborne Infections - Differential ... Hemolytic Uremic Syndrome ... dermatitidis CNS ... Clinical symptoms: headaches ... Waterborne #Infections #Differential