7 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Mnemonic C - Cryoglobulinemia ... S - Systemic Lupus ... Erythematosus ( ... total 50, renal ... #differential #hematology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
factor level • Low ... serum C4 complement ... erythematosus ( ... #types #classification ... #rheumatology #
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
Erythematosus ... pericarditis • Hematologic ... hemolysis • Renal ... anticoagulant • Complement ... #diagnosis #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low ... GN, Lupus Nephritis ... , Cryoglobulinemia ... #differential #diagnosis ... #algorithm #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
complements and ... Skin Disease Classification ... Kikuchi disease • Type-I ... APLA/LAC: • Renal ... #Diagnosis #Rheumatology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
• Neutrophilic dermatosis ... to cold IgG • Lupus ... vascular beds-renal ... #Hematology #Monoclonal ... #Differential #Diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
pulmonary and renal ... against MPO • Complement ... (Low levels mixed ... #rheumatology # ... classification