19 results
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
- Differential ... Diagnosis Framework ... • CNS Vasculitis ... #differential # ... diagnosis #ophthalmology
Cerebral Toxoplasmosis 
- Most comrnon CNS infection in patients with AIDS 
who are not receiving appropriate
- Most comrnon CNS ... patients with AIDS ... Clinical • Headache ... Toxoplasmosis #Diagnosis
Approach to Headaches - Differential Diagnosis Algorithm

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

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Diagnosis Framework ... cells per μL • Diagnosis ... #Infections #differential ... #diagnosis #AIDS
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
Heat Stroke - Differential ... Diagnosis Framework ... sensations - Headache ... cardiomyopathy, ARDS ... #diagnosis #causes
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
CNS Infections - ... Bacterial Meningitis - Differential ... Symptoms: • Headache ... features include - Headache ... Meningitis: • Headache
13 Dangerous Causes of Headache:
 - subarachnoid hemorrhage: family history, PCKD, known berry aneurysm, sudden and
Dangerous Causes of Headache ... hypertension - CNS ... postpartum #Diagnosis ... #Headache #Killers ... Dangerous #Deadly #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
symptoms (headache ... artery aneurysms Diagnosis ... Behcet disease) Differential ... Diagnosis: • Genital ... Behcet #Syndrome #diagnosis
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation: CNS ... : Atelectasis, ARDS ... Hypoxia #hypoxemia #differential ... #diagnosis