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

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Pain Eyes ... Subacute bacterial endocarditis ... system • Mitral ... - Bacterial endocarditis ... #pain #differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Pain Rash ... infection Malar rash ... • Rheumatic fever ... #differential #
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... Pain - Differential ... PainViral ... Infection • Endocarditis ... Infectious #JointPain #MSK
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
- Differential Diagnosis ... Systemic Lupus Erythematosus ... (SLE), should have ... like “butterfly rash ... #Disorders #msk
Inflammatory Joint Pain - Differential Diagnosis Algorithm 
Monoarticular
 • Gout (Podagra, Tophi)
 • Pseudogout
 • Early
Pain - Differential ... • Rheumatic Fever ... Systemic Lupus Erythematosus ... Inflammatory #JointPain #MSK ... #Differential #
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
) General: Fever ... Photosensitivity, Butterfly rash ... of hip (rare), Arthritis ... lesions Abdominal pain ... #systemic #erythematosus
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
weight loss, and fever ... rashErythematous ... permanent alopecia Differential ... : • Joint pain ... • Libman-Sacks endocarditis
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis ... Differential Diagnosis ... • Bacterial endocarditis ... Joint #pain #Differential ... #Diagnosis #MSK
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
Pain - Diagnostic ... acute rheumatic fever ... Chronic = RA, SLE ... #Joint #Pain #MSK ... approach #workup #differential
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
muscle weakness, rash ... , Fever, No muscle ... with temporal arteritis ... Detectable HIV viral ... Myopathies #myopathy #differential