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Membranoproliferative Glomerulonephritis (MPGN) AKA: Mesangiocapillary GN
 • Active Urine Sediment (dysmorphic RBC, RBC casts, +/- proteinuria)
Membranoproliferative Glomerulonephritis ... staining (lg + complement ... MGPN • Complement ... Membranoproliferative #Glomerulonephritis ... nephrology #diagnosis #renal
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Membranoproliferative glomerulonephritis ... Post/pauci immune glomerulonephritis ... Erythematosus (total 50, renal ... Hypocomplementemia #Low #Complement
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Pulmonary Renal ... rapidly progressive glomerulonephritis ... anti-GBM) 10%: - Low Complement ... Vasculitis - Normal Complement ... Levels: Scleroderma Renal
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
pulmonary and renal ... - Necrotizing glomerulonephritis ... , pauci-immune glomerulonephritis ... against MPO • Complement ... • Urinalysis (Renal
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Rapidly Progressive Glomerulonephritis ... staining): • Low Complement ... Idiopathic • Normal Complement ... Kidney: Anti-GBM Glomerulonephritis ... #Progressive #Glomerulonephritis
Causes of Acute Kidney Injury ( AKI ) - Prerenal, Renal, and Postrenal

PRE-RENAL 
Impaired perfusion: 
•
) - Prerenal, Renal ... Postrenal PRE-RENAL ... Vascular occlusion RENAL ... Glomerulonephritis ... Infection POST-RENAL
Complement Pathways
- Classical Pathway
- Lectin Pathway
- Alternative Pathway

#Complement #Pathway #hematology #pathophysiology
Complement Pathways ... Alternative Pathway #Complement
Glomerular Diseases - Nephritic and Nephrotic Syndromes

Nephritic syndrome:
 - Acute poststreptococcal 
glomerulonephritis 
 - Rapidly progressive
poststreptococcal glomerulonephritis ... Rapidly progressive glomerulonephritis ... proliferative glomerulonephritis ... Membranoproliferative glomerulonephritis
Guide to Acute Kidney Injury (AKI)

What to ask/look for: 
 - HPI, PMH, full ROS
protein/Cr - Renal ... - 45% - Pre-renal ... mostly ATN and pre-renal ... related) - Glomerulonephritis
Spectrum of Glomerulonephritis 
Pathology - Common Diseases - Typical Presentation 

By Dr. John Roberts @John_K_Roberts

#Glomerulonephritis #Spectrum
Spectrum of Glomerulonephritis ... John_K_Roberts #Glomerulonephritis