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

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Associated with Joint ... Subacute bacterial endocarditis ... Cardiovascular system • Mitral ... - Bacterial endocarditis ... #pain #differential
Primary and Secondary Causes of Mitral Regurgitation
Primary (organic) chronic mitral regurgitation:
 • Leaflet: Rheumatic fever, Infective
Leaflet: Rheumatic fever ... , Infective endocarditis ... , Infective endocarditis ... cardiomyopathy - VA Joint ... Regurgitation #differential
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Infectious Joint ... Pain - Differential ... Polyarticular Join ... Arthritis • Disseminated ... Infection • Endocarditis
Fever Patterns - Differential Diagnosis Framework

Continuous Fever:
Temp > 38°C with only 1 degree fluctuation in 24
Differential Diagnosis ... Acute bacterial endocarditis ... Juvenile idiopathic arthritis ... • Rheumatoid arthritis ... #Patterns #Differential
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
acute rheumatic fever ... Lyme), reactive arthritis ... • Acute = Viral ... approach #workup #differential ... #diagnosis #arthritis
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
Origin (FUO) - Differential ... • Giant cell arteritis ... • Infectious endocarditis ... EBV • CMV • Viral ... #FUO #Chronic #Differential
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
, Fever, No muscle ... with temporal arteritis ... Detectable HIV viral ... Myopathies #myopathy #differential ... #diagnosis #comparison
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Differential Diagnosis ... • Rheumatic fever ... Viral Infections ... • Bacterial endocarditis ... Joint #pain #Differential
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Involves aortic and mitral ... night sweats, fever ... Marantic (NTBE) Differential ... Paradoxical emboli via ASD ... Persistent bacteremia/fevers
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis: • Fevers ... vesicular eruption • Joints ... Palpable purpura, joint ... urticaria, recent viral