8 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
pseudotumor 4 phenotypes ... with response to treatment ... rheumatoid factor), ± hypocomplementemia ... diagnosis #management #phenotypes ... #workup #treatment
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... (Low levels mixed
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
• Immunologic Workup ... in >90% - Low ... complement - Rare ... 60-80% - Low ... complement - 50
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
• Immunologic Workup ... 60-80% - Low ... complement - 50 ... life-threatening • Treatment
There are similarities and differences between these 3 conditions which all carry treatment implications. Each mimic
which all carry treatment ... hormones that work ... both conditions, low ... #differential #algorithm ... #management #treatment
Drug Induced Lupus (DIL)
 • Epidemiology: -10% of all lupus cases, drug-dependent, 4:1 to 1:1 F:M
• Immunologic Workup ... in >90% - Low ... complement - Rare ... constitutional symptoms • Treatment ... rheumatology #diagnosis #treatment
Monoclonal Gammopathy of Renal Significance (MGRS)

MGRS
• MGRS refers to kidney disease caused by nephrotoxic monoclonal immunoglobulins
Diagnostic Workup ... Pathogenesis: How ... Damages Kidneys • Low ... tubulopathy) - Complement ... microangiopathy Treatment