10 results
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Symptoms of Joint Disease ... Crystal Deposition ... : • Acute or chronic ... ochronosis and crystal ... approach #workup #differential
CPPD vs Gout

== CPPD == 

Think About CPPD When:
 • Self-limited synovitis after surgery/trauma (> 65
• Underlying disease ... precipitates with calcium ... Acute CPP Crystal ... onset of swelling, pain ... swelling, significant pain
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
Pseudogout Summary - Calcium ... precipitates with calcium ... Acute CPP Crystal ... onset of swelling, pain ... neck pain, fever
Differential Diagnosis of Acute Arthritis

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

Infectious arthritis: Bacteria, fungi,
Differential Diagnosis ... of Acute Arthritis ... Crystal-induced ... arthritis: Calcium ... #Acute #Arthritis
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Inflammatory Joint Pain ... - Differential ... polyangiitis (GPA)/microscopic ... Rheumatic Fever Acute ... JointPain #MSK #Differential
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Hematuria - Differential ... basement membrane disease ... Post-infectious GN - Loin pain ... syndrome: • Flank pain ... of glomerular disease
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
Approach to Joint Pain ... disease, spondyloarthropathies ... Inflammatory, crystalline disease ... #Joint #Pain #MSK ... approach #workup #differential
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
- Arthritis Differential ... the time course (acute ... MONOARTHRITIS • Acute ... Inflammatory • Crystal ... Joint #pain #Differential
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
polarized light microscopy ... (gout) or calcium ... Screening Tests for Acute ... , and low back pain ... • Serum and urine
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Classification: • Acute ... permanent alopecia Differential ... Pleural effusions • Acute ... : • Joint pain ... edema, active urine