8 results
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology of Hypocomplementemic ... Complex Formation - Complement ... TerrierBen #Hypocomplementemic ... Pathophysiology #Rheumatology
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... @AnnKumfer #Hypocomplementemia ... #Low #Complement ... #differential #hematology
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 ... workup #treatment #rheumatology
Drug Induced Liver Injury (DILI) - Stepwise Diagnosis Algorithm
DILI suspicion
Features toxic aetiology: Skin involvement, Kidney injury,
Drug Induced Liver ... Stepwise Diagnosis Algorithm ... Autoantibody titres, ↑ IgG ... Injury #Diagnosis #Algorithm ... #hepatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... differential #diagnosis #rheumatology
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
Acute Liver Injury ... Differential Diagnosis Algorithm ... hepatitis, PBC, PSC, IgG4 ... differential #diagnosis #algorithm ... #hepatology
Autoimmune Hepatitis - Testing Algorithm
Individual Tests:
 • F-Actin (Smooth Muscle) Antibody, IgG by ELISA with Reflex
Hepatitis - Testing Algorithm ... Muscle) Antibody, IgG ... by IFA • Liver ... Autoimmune #Hepatitis #Algorithm ... #diagnosis #hepatology
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
Cytopenia: 2% • Hypocomplementemia ... vasculitis: 10%-16% Liver ... Nephrogenic DI Hematologic ... Sjogrens #Syndrome #Rheumatology