13 results
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in Rheumatology ... others (RNP, aPL antibodies ... LAC) • Sjogren Syndrome ... , Others: SRP, Mi ... Vasculitis: P-ANCA
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... • Cogan Syndrome ... LFT • ESR • ANA ... ) pattern: antibodies ... #rheumatology #
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Purpura Anti-GBM antibodies ... With associated pulmonary ... Glomerulonephritis #Vasculitis ... #differential # ... diagnosis #algorithm #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... oligoclonal bands • MRI ... #Differential # ... Diagnosis #Rheumatology
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
vasculitis (AAV ... palpable purpura 2/2 vasculitis ... coagulopathy) • CBC w differential ... EGPA) • Auto-antibodies ... #differential #
Weakness - Differential Diagnosis Framework

Approach To Weakness:
 • Non-neuromuscular disorder (Cardiac, pulmonary etc)
 • CNS ->
Weakness - Differential ... disorder (Cardiac, pulmonary ... • Acute stroke syndromes ... EMG) studies • MRI ... #Weakness #Differential
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
SLE), Sjogren's Syndrome ... Arthritis, Sjögren Syndrome ... , Interstitial Pulmonary ... #rheumatology #diagnosis ... #differential
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
permanent alopecia Differential ... Non-autoimmune rheumatologic ... 1, SCL-70, RNP antibodies ... anticardiolipin antibodies ... Erythematosus #Diagnosis #Rheumatology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Cold Sensitive Antibodies ... Cryoglobulins (Vasculitic ... Cold Agglutinin Syndrome ... younger pts) Differential ... hemolytic #anemia #hematology
Venous Thrombosis vs Arterial Thrombosis - Differential Diagnosis Framework

VENOUS THROMBOSIS

 • Acquired Risk Factors:
	- >48 hours
Arterial Thrombosis - Differential ... • Nephrotic Syndrome ... Antiphospholipid antibodies ... 19 - PNH - Vasculitis ... #differential #