1773 results
Adult-Onset Still's Disease (AOSD)
Rare inflammatory disorder of unknown etiology, difficult to diagnose because of heterogenous presentation.
Adult-Onset Still's Disease ... arthritis and chronic synovitis ... AdultOnset #Stills #Disease
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Arthritis • Toxic Synovitis ... Legg-Calve-Perthes Disease ... Osgood-Schlatter Disease
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Symptoms of Joint Disease ... categories of joint disease ... joint deformity Synovitis ... necrosis, and Paget disease
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
inflammatory skin disease ... Sneddon-Wilkinson disease ... SAPHO syndrome (synovitis ... Pustular skin disease
SAPHO Syndrome Summary

What?
SAPHO syndrome is a rare chronic inflammatory disorder of bone, joint, and skin characterized
characterized by: • Synovitis ... Clinical Features: • Synovitis ... osteoarticular and skin disease
Differential Diagnosis of Acute Arthritis

Crystal-induced arthritis: Calcium oxalate, gout, cholesterol, pseudogout, hydroxyapatite crystals

Infectious arthritis: Bacteria, fungi,
erythematosus,* Still disease ... inflammatory bowel disease–related ... pigmented villonodular synovitis
Syphilis - Clinical Manifestations and Treatment

1) Primary Syphilis
 • Direct lesion contact during sex is responsible
meningovascular disease ... ulcerated • MSK: Synovitis ... Coronary artery disease
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
• Self-limited synovitis ... • Underlying disease
Remitting Seronegative Symmetrical Synovitis

Pitting tenosynovitis. Pink hands also. Hint: pink hands may not be related to
Seronegative Symmetrical Synovitis ... #Symmetrical #Synovitis
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
Pyrophosphate Deposition Disease ... • Self-limited synovitis ... • Underlying disease ... monoarticular CPPD disease ... Colchicine • CPPD disease