8 results
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
stiffness in proximal joints ... , Fever, No muscle ... with temporal arteritis ... myopathy) VA Joint ... Myopathies #myopathy #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 ... rheumatology #approach #workup ... #differential # ... diagnosis #arthritis
Disseminated Gonococcal Infection - Diagnosis and Management Summary

Bacteremic spread of the Gram-negative diplococci Neisseria gonorrhoeae. History
an accessible joint ... typically part of the workup ... syndrome: • Fever ... Painless) Purulent Arthritis ... #Microbiology #InfectiousDiseases
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Framework Bone/Joint ... Compartment syndrome • Myositis ... pain/swelling - Fever ... #Leg #pain #differential
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... and branches • Fever ... vesicular eruption • Joints ... Coronary arteries • Fever ... Palpable purpura, joint
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
weight loss, and fever ... permanent alopecia Differential ... : • Joint pain ... arthropathy • 90% joints ... , Fever, Serositis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... vesicular eruption - Joints ... Coronary arteries - Fever ... Conjunctivitis, mucositis ... Vasculitis: • Fevers
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
- Differential ... Overlap Syndrome: Fever ... , joint pain and ... ANTI-SYNTHETASE SYNDROME: • Fever ... • Nonerosive arthritis