6 results
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
with response to treatment ... rheumatoid factor), ± hypocomplementemia ... No necrosis, No vasculitis ... + cells" Treatment ... maintenance with GCs
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... #rheumatology #classification
IGG-4 RELATED DISEASE

WHAT?
 • A chronic, immune-mediated fibroinflammatory disease with tumefactive infiltration of IgG4+ plasma cells
IGG-4 RELATED DISEASE ... aortitis, mimics vasculitis ... - ↑ IgE, ↓ complement ... • Classification ... : 2019 ACR/EULAR
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
thiazidic, PPI, ACE ... - ANA > 95% (IgG ... 90% - Low complement ... 80% - Low complement ... life-threatening • Treatment
Drug Induced Lupus (DIL)
 • Epidemiology: -10% of all lupus cases, drug-dependent, 4:1 to 1:1 F:M
thiazidic, PPI, ACE ... - ANA > 95% (IgG ... 90% - Low complement ... Discontinuation of causal ... rheumatology #diagnosis #treatment
Monoclonal Gammopathy of Renal Significance (MGRS)

MGRS
• MGRS refers to kidney disease caused by nephrotoxic monoclonal immunoglobulins
kidney disease caused ... guide subtype classification ... tubulopathy) - Complement ... formation causing vasculitis ... microangiopathy Treatment