589 results
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
arthritis, gout or pseudogout ... Spondyloarthropathies, gout, pseudogout ... Rhomboid, blue = pseudogout ... Joint #Pain #MSK #rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
induced (Gout/Pseudogout ... - Autoimmune Rheumatologic ... Lyme • Gout/Pseudogout ... Diagnosis #MSK #rheumatology
Pseudogout Summary - Calcium Pyrophosphate Deposition Disease (CPPD)

Pathophysiology:
Pyrophosphate produced by chondrocytes likely precipitates with calcium to
Pseudogout Summary ... chondrocalcinosis Acute Pseudogout ... #Pseudogout #CPPD ... Deposition #Disease #Rheumatology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... fluid • Gout or pseudogout ... dihydrate crystals (pseudogout ... diagnosis #testing #Rheumatology
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
arthritis SLE, , RF , Pseudogout ... Table #Aspiration #Pseudogout
Thrombotic Microangiopathies In Systemic Lupus Erythematosus

Dr. Laurent ARNAUD @Lupusreference

#TMAs #Thrombotic #Microangiopathies #Systemic #Lupus #Erythematosus #SLE #hematology
Erythematosus #SLE #hematology ... #rheumatology #
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
Thrombocytosis - Differential Diagnosis
Platelet Count > 450
Reactive:
 • Anemia/blood loss (Fe deficiency)
 • Infection/Sepsis
 • Non-infectious
Non-infectious (malignancy, rheumatologic ... causes #Platelets #hematology
Arthrocentesis of synovial fluid - Interpretation
 - Normal
 - Noninflammatory	
 - Inflammatory	
 - Septic

Viscosity of synovial
Table #Aspiration #Pseudogout
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Crystals - “Pseudogout