11 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
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 ... #rheumatology #classification
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low ... Complement: Post-strep ... Idiopathic • Normal Complement ... to Kidney: Anti-GBM ... differential #diagnosis #algorithm
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Vasculitis - Anti-GBM ... Positive (ANCA + anti-GBM ... ) 10%: - Low Complement ... Vasculitis - Normal Complement ... other hemorrhagic fevers
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... Constitutional domain: Fever ... anticoagulant • Complement ... C3 or low C4, Low ... #EULARACR #Classification
Comparison of Fever Algorithms for Infants <3 months old

AGE, INCLUSION, TESTS 
REQUIRED, "LOW RISK" CRITERIA, TREATMENT,
Comparison of Fever ... Algorithms for ... TESTS REQUIRED, "LOW ... criteria #EBM ... #Fever #Algorithm
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis: • Fevers ... and branches • Fever ... pain and GN Anti-GBM ... Elevated AST ALT • Hypocomplementemia ... Vasculitis) • Hypocomplementemic
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
originate from a low-grade ... - Mycoplasma, EBV ... temperatures by fixing complement ... Symptoms: High fevers
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
weight loss, and fever ... anti-Smith Ab, low ... complements and ... Skin Disease Classification ... , lymphopenia, low
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
• History of EBV ... • Dyspnea • Fever ... -95% of cases) Classification ... Blood Count - Low ... may be high or low