4 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Effusions - Septic Arthritis ... - SLE - Behcet ... Ligamentous injuries - Meniscal ... Effusions #causes #differential
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
in Behcet syndrome ... Positive pathergy test ... is a skin prick test ... disease) Differential ... Recurrent and chronic
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
present both at rest ... improves quickly with rest ... : • Acute or chronic ... trauma (e.g., meniscal ... approach #workup #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... Eosinophilia, asthma, chronic ... and often causes arthritis ... VASCULITIS: • Behçet ... retinopathy Lab Tests