11 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 ... Urticarial #Vasculitis #HUV
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... A - Atypical HUS ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... Vasculitis: • Fevers ... against MPO • Complement ... #rheumatology #classification
Causes of Fever of Unknown Origin (FUO) - Differential Diagnosis Algorithm
Neoplasm:
• NHL
• Hodgkin's lymphoma
• Leukemia
• Solid
of Unknown Origin ... Differential Diagnosis Algorithm ... PE Bacterial - Organ ... Infection: • HIV ... Differential #Diagnosis #Algorithm
Causes of Acute Onset Fever - Differential Diagnosis Algorithm
Viral:
 • Rhinovirus
 • Influenza Virus
 • Parainfluenza
of Acute Onset Fever ... Differential Diagnosis Algorithm ... Coronavirus • HIV ... Septic Shock Acute Organ ... Differential #Diagnosis #Algorithm
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis: • Fevers ... and branches • Fever ... HTN • Check: HBV ... Elevated AST ALT • Hypocomplementemia ... Vasculitis) • Hypocomplementemic
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
typically of B-cell origin ... - Pel-Ebstein fever ... - Infections (HIV ... , EN, HTLV-1, HCV ... translocation • Types: Classification
Types of Fever of Unknown Origin (FUO)
 • Classic
 • Nosocomial
 • Neutropenic
 • HIV-Associated

Dr. Uday
Types of Fever of ... Unknown Origin ... Neutropenic • HIV-Associated ... udaygulati #FUO #Fever ... UnknownOrigin #Types #Classification
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
injury and end-organ ... Cryoglobulins Cause Organ ... infection, HBV ... • Low serum C4 complement ... diagnosis #types #classification
Possible Algorithm for Workup of Fever of Unknown Origin (FUO)
Tier 1 Workup:
 • CBC, comprehensive metabolic
Possible Algorithm ... for Workup of Fever ... of Unknown Origin ... blood cultures • HIV ... #Fever #Unknown