33 results
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
or viral infection ... syndrome - SLE Neurologic ... Cardiomyopathies - Viral infection ... #differential #diagnosis ... #rheumatology
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... infections (bacterial ... ), RA, crystal disease ... #rheumatology # ... #differential #diagnosis
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
- Differential Diagnosis ... • Infectious ... , Bacterial, Fungal ... Systemic Rheumatic Disease ... #Diagnosis #rheumatology
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... - Autoimmune Rheumatologic ... gonorrhea) • Bacterial ... #Diagnosis #MSK ... #rheumatology #
Approach to Joint Pain

History:
Is the pain from:
	• Joint
	• Adjacent bursa
	• Tendon
	• Ligament
	• Bone
	• Muscle
	• Referred from
Calcium oxalate Infectious ... Acute or chronic infections ... related to bacterial ... #Pain #MSK #rheumatology ... #differential #diagnosis
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
- Differential Diagnosis ... Framework Non-Infectious ... • Most common bacterial ... #Differential #Diagnosis ... #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:
STAIN CULTURE PCR ... disease Infectious ... nongonococcal ) #Diagnosis ... Arthrocentesis #Joint ... Septic #Infective #Arthritis
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Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... parvovirus B19 infection ... parvovirus B19 infection ... #differential #diagnosis ... #rheumatology
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
- Differential Diagnosis ... Juvenile idiopathic arthritis ... • Rheumatoid arthritis ... Leptospirosis Pel-Ebstein ... #Differential #Diagnosis
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... toxo IgG • CNS PCR ... : • Bacterial ... #differential #diagnosis ... causes #radiology #neurology