65 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... @AnnKumfer #Hypocomplementemia ... #Low #Complement ... Mnemonic #diagnosis #differential
Effect of Selected Diseases on Complement Levels - C3, C4
 • SLE C3 ↓ C4 ↓↓
Selected Diseases on Complement ... Levels - C3, C4 • SLE ... • Infection eg SBE ... ThePeanutKidney #Complement ... Levels #C3 #C4 #differential
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Syndromes and Mimics - Differential ... anti-GBM) 10%: - Low Complement ... Levels: SLE, Cryoglobulinemic ... Vasculitis - Normal Complement ... Syndromes #Mimics #Differential
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Induced Lupus vs SLE ... to 1:1 F:M • Clinical ... 90% - Low complement ... 40, F:M 9:1 • Clinical ... 80% - Low complement
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... Erythematosus Clinical ... anticoagulant • Complement ... #EULARACR #Classification ... #Criteria #SLE
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... vasculitis, and SLE ... #rheumatology #classification
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Erythematosus (SLE ... 40, F:M 9:1 • Clinical ... are evocative of SLE ... 80% - Low complement ... management of SLE
Humoral Immunity - Pathogenesis and Clinical Findings
Antigens (Ag) are produced from pathogens (bacteria, viruses, fungi, parasites)
Pathogenesis and Clinical ... activation • Complement ... classical pathway (see ... Complement Activation ... proliferate and differentiate
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus
Clinical and Immunologic Criteria

CLINICAL CRITERIA
 - ACUTE CUTANEOUS LUPUS
SLICC SLE Diagnostic ... Erythematosus Clinical ... Immunologic Criteria CLINICAL ... anticoagulant - Low complement ... #Rheumatology #SLE
Lupus Nephritis Primer
Class I - Minimal Mesangial
Class II - Mesangial Proliferative
Class Ill - Focal Proliferative
Class IV
Lupus #Nephritis #SLE ... #Classification ... #Classes #differential