859 results
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Rapidly Progressive Glomerulonephritis ... three primary pathophysiologic ... staining): • Low Complement ... Idiopathic • Normal Complement ... Kidney: Anti-GBM Glomerulonephritis
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
antigen, leading to complement ... Complement activation ... Post-streptococcal glomerulonephritis ... Classification #Pathophysiology
Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
Membranoproliferative Glomerulonephritis ... staining (lg + complement ... MGPN • Complement ... of alternative complement ... Membranoproliferative #Glomerulonephritis
Complement Pathways
- Classical Pathway
- Lectin Pathway
- Alternative Pathway

#Complement #Pathway #hematology #pathophysiology
Complement Pathways ... Alternative Pathway #Complement ... Pathway #hematology #pathophysiology
Overview of the Complement System - Classical and Alternative Pathways

by Dr.Grace Leo @gracie_leo

#Complement #System #Classical #Alternative
Overview of the Complement ... gracie_leo #Complement ... Alternative #Pathways #Pathophysiology
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Membranoproliferative glomerulonephritis ... Post/pauci immune glomerulonephritis ... Hypocomplementemia #Low #Complement
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
rapidly progressive glomerulonephritis ... anti-GBM) 10%: - Low Complement ... Vasculitis - Normal Complement
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology ... Complex Formation - Complement ... Vasculitis #HUV #Pathophysiology
Inflammatory Cascade: Pathogenesis and Clinical Findings
Continued Innate Immunity
 • Phagocytosis: (main mechanism) neutrophils and macrophages engulf
dead tissue • Complement ... activation of complement ... #Inflammation #pathophysiology
Glomerular Diseases - Nephritic and Nephrotic Syndromes

Nephritic syndrome:
 - Acute poststreptococcal 
glomerulonephritis 
 - Rapidly progressive
poststreptococcal glomerulonephritis ... Rapidly progressive glomerulonephritis ... proliferative glomerulonephritis ... Membranoproliferative glomerulonephritis