11 results
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Anti-retrovirals, Gemcitabine Lupus ... joint aches • +ANA ... uncommon 5-15% of lupus ... #differential #diagnosis ... #comparison #rheumatology
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
clinical associations ... duration of symptoms ... #Urticaria #diagnosis ... #rheumatology # ... comparison #table
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
symptoms - most ... passage of red-brown urine ... • Diagnostic ... hemolytic #anemia #hematology ... #diagnosis
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Constitutional symptoms ... Workup: - ANA ... #sle #comparison ... #table #rheumatology ... #diagnosis #management
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Differential Diagnosis ... Non-autoimmune rheumatologic ... edema, active urine ... : • Symptoms limited ... #Rheumatology
Features That Differentiate Acute Pericarditis from Myocardial Ischemia or Infarction and Pulmonary Embolism

In contrast to the
associated with rheumatologic ... presentation of systemic lupus ... #Pericarditis #Symptoms ... #Presentation #comparison ... #Table #Diagnosis
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
late-onset nemaline myopathy ... anemia due to cold ... IgG • Lupus anticoagulant ... Paraproteinemias #Hematology ... #Differential #Diagnosis
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
Asia • HLA-B51 association ... matter, spinal cord ... meningitis), MCC CNS symptoms ... management #signs #symptoms ... #rheumatology #
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
- Differential Diagnosis ... RP-ILD), dermato-rheumatologic ... -1 antibodies (ANA ... (also seen in association ... #rheumatology #
Paget’s Disease: Complications
Abnormal Osteoclasts cause excessive bone turnover -> Incr bone resorption, Incr (abnormal) bone formation

MSK
make bones weaker and ... Ca2+] load, Incr urine ... or the spinal cord ... pathophysiology #diagnosis ... #signs #symptoms