8 results
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
heliotrope, shawl sign ... exclusion Necrotizing Autoimmune ... #Myopathies #differential ... diagnosis #comparison #rheumatology ... #table
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
Pain - Arthritis Differential ... noninflammatory Signs ... Rheumatologic Disease ... #Joint #pain #Differential ... Diagnosis #MSK #rheumatology
Gout (Gouty Arthritis) - MSK Radiology
Imaging Findings:
 • Eccentric soft-tissue densities surrounding the third proximal interphalangeal
mass and NO prior signs ... NOT interpret MRI ... Differential diagnosis ... : • Inflammatory ... diagnosis #msk #rheumatology
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... Lack of UMN/LMN signs ... necrotizing myopathy • Autoimmune ... EMG) studies • MRI ... #Weakness #Differential
Features That Differentiate Acute Pericarditis from Myocardial Ischemia or Infarction and Pulmonary Embolism

In contrast to the
Features That Differentiate ... associated with rheumatologic ... pain, such as MI ... Pericarditis #Symptoms #Signs ... Presentation #comparison #Table
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
common systemic inflammatory ... systemic sx + signs ... very remarkable w/differential ... in literature (NEJM ... them, but urgent rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... purpura: Strong sign ... oligoclonal bands • MRI ... syndrome: Ocular inflammatory ... #Diagnosis #Rheumatology
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
- Differential ... Diagnosis Framework Inflammatory ... papules and Gottron sign ... ) • Shawl sign ... #differential #