18 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... autoimmune (RA, Sjogren's ... glomerulonephritis (>90%) S - Systemic ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... central nervous system ... against MPO • Complement ... , and SLE) • Urinalysis
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Clinical Features of Systemic ... Lupus (SLE) General ... loss (50%) Eye: Sjögrens ... Butterfly rash, Vasculitis ... Thrombocytopenia #Lupus #SLE
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
activate the immune system ... diseases: - 10% SLE ... • Low serum C4 complement ... disorder (e.g. systemic ... erythematosus (SLE
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
- Drug-induced SLE ... Anti-SSB (La) - Sjogren's ... disease c-ANCA - Vasculitis ... granulomatosis p-ANCA - Vasculitis ... diseases #diagnosis #table
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
SSc: systemic sclerosis ... PSS: Sjogren syndrome ... rheumatoid arthritis SLE ... : systemic lupus ... Differential #Comparison #Table
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
antibodies and Systemic ... neonatal lupus and Sjogren ... Associated with Sjogren ... autoantibodies #Systemic ... #rheumatology #table
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Rheumatology • Lupus (SLE ... Anticoagulant (LAC) • Sjogren ... • Scleroderma (Systemic ... Polymerase Ill • ANCA Vasculitis ... #associations #table
Causes of Polyneuropathy - Differential Diagnosis Algorithm
 • Metabolic: DM, Hypothyroidism, CKD, Cirrhosis, Nutritional deficiency
 •
Differential Diagnosis Algorithm ... Paraneoplastic, CTD (SLE ... , RA, Sjogren’s) ... , Vasculitis, Sarcoidosis ... Differential #Diagnosis #Algorithm
Causes of ileitis beyond Crohn’s disease and infections include systemic disorders -spondyloarthropathies, vasculitides, ischemia, and amyloidosis
infections include systemic ... spondyloarthropathies, vasculitides ... See below for table ... helpful paper complements ... #Differential #Table