11 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... - CHAMPS Mnemonic ... @AnnKumfer #Hypocomplementemia ... Low #Complement #CHAMPS
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... node), high serum IgG4 ... rheumatoid factor), ± hypocomplementemia ... with increased IgG4 ... Mettler_K1000 #IgG4
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
allergies Type II - IgG ... Cell-bound antigen - IgG ... IgG can also mediate ... Type Ill - IgG and ... Diagnosis #Reactions #Table
Highlighted Conditions With Arteritis or Periarteritis of the Coronaries
Takayasu's arteritis:
 - Onset < 40 yrs
 -
arterial thrombosis IgG4 ... Diagnosis #Cardiology #Table
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Summary table of ... - Mediators: IgG ... Mechanism of Action: IgG ... types #allergy #table
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
transglutaminase (tTG) IgG ... antibody test IgG ... Diagnosis #Workup #Table
Pemphigus Vulgaris vs Bullous Pemphigoid - Comparison Table
Pemphigus Vulgaris
 • Epidemiology: Average age 40-60
 • Time
Pemphigoid - Comparison Table ... Intercellular IgG ... Immunofluorescence: Linear IgG
Hepatitis B (HBV) Serology

HBsAg - Presence denotes current HBV infection (chronic or acute)
HBV Core Antibody -
- Anti-HBcAg IgG ... Interpretation #Table
Scleroderma Like Conditions - Differential Diagnosis
Eosinophilic Fasciitis:
 - Orange peel induration (peau d'orange) of proximal extremities
paraproteinemia (IgGλ ... Diagnosis #comparison #table
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
- ANA > 95% (IgG ... sle #comparison #table