1008 results
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
arthritis SLE, , RF , Pseudogout ... Table #Aspiration #Pseudogout ... #Septic #Infective
Synovial Fluid Analysis:

Findings (COLOR	TRANSPARENCY	VISCOSITY	WBC COUNT (PER MM3)	PMN CELL COUNT (%)	GRAM STAIN	CULTURE	PCR TEST	CRYSTALS)

By Condition (Normal 
Noninflammatory 
Inflammatory:
Table #Aspiration #Pseudogout ... #Septic #Infective
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
Table #Aspiration #Pseudogout ... #Septic #Infective
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
arthritis, gout or pseudogout ... with bacterial infection ... prosthetic joint infection ... Spondyloarthropathies, gout, pseudogout ... Rhomboid, blue = pseudogout
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Podagra, Tophi) • Pseudogout ... Genitourinary Infection
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Crystals - “Pseudogout ... within 1 month of infection
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
induced (Gout/Pseudogout ... By: - Chronic Infection ... Lyme • Gout/Pseudogout ... Rubella Bacterial Infection
Differential Diagnosis of Acute Arthritis

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

Infectious arthritis: Bacteria, fungi,
, cholesterol, pseudogout ... tear Systemic infection ... immunodeficiency virus infection
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
Pseudogout Summary ... diagnose concomitant infection ... chondrocalcinosis Acute Pseudogout ... #Pseudogout #CPPD
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Arthritis • Gout/pseudogout ... Leg Pain: • Infection