11 results
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
- Differential ... without aura - Chronic ... - Autonomic symptoms ... meningeal irritation signs ... ophthalmology #Neurology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
and duration of symptoms ... - Headache, fever ... abdominal pain, diarrhea ... urticaria, Chronic ... #rheumatology #comparison
Lyme Disease: Early and Late Clinical manifestations
Stage 1. Localized
 • EM appears 7-14 days at the
Lyme Disease: Early ... myalgia, arthralgia, headache ... - Remitting, chronic ... #diagnosis #signs ... #symptoms
Causes of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
1. Benign paroxysmal positional vertigo (BPPV) - Short-lived (typically less
Méniére's disease ... course of the disease ... Disease onset usually ... signs or symptoms ... Vertigo #Causes #differential
Headaches Overview - Primary vs Secondary Headaches

What’s the Core Difference?
 • Primary headache = headache is
disease itself ... symptom of something ... N Neurological signs ... confusion, focal signs ... Primary #Secondary #Comparison
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
skin injury) • Neurologic ... (headache and diplopia ... ) Differential Diagnosis ... Recurrent and chronic ... diagnosis #management #signs
Emergent Causes of Headache and Associated Risk Factors
Carbon monoxide poisoning
 - Breathing in enclosed or confined
with the same symptoms ... collagen vascular diseases ... ) - Previous chronic ... #redflags #signs ... #symptoms #differential
Celiac Disease - Clinical Manifestations
Gastrointestinal Manifestations: 
 • Diarrhea, Loose stools, Dyspepsia, Flatulence, Chronic abdominal pain,
Celiac Disease - ... Manifestations: • Diarrhea ... fractures • Recurring headaches ... herpetiformis #Celiac #Disease ... #signs #symptoms
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
purpura: Strong sign ... 50 years • New headache ... of headache, cognitive ... impairment, neurologic ... Eosinophilia, asthma, chronic
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Infections in HIV - Differential ... Diagnosis Framework Disease ... • CT: Halo sign ... Constitutional symptoms ... Abdominal pain, chronic