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

Immune Complex Mediated (granular staining):
Rapidly Progressive ... pathophysiologic causes ... • Limited to Kidney ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
proteinuria, rapidly progressing ... tract, and often causes ... Kidneys -> glomerulonephritis ... against MPO • Complement ... #rheumatology #classification
Acute Kidney Injury (AKI) - Differential Diagnosis Framework
Pre-Renal:
 • Hypovolemia, Cardiorenal, Distributive Shock, HRS, Hypercalcemia, Renal
Acute Kidney Injury ... Distributive Shock, HRS ... Emboli, Thrombosis, Vasculitis ... Diagnosis #nephrology #causes ... #algorithm
Acute Kidney Injury - Classification
Prerenal:
 • Dehydration
 • Heart failure (a.k.a. cardiorenal syndrome)
 • Liver failure
Acute Kidney Injury ... - Classification ... - Small vessel vasculitis ... - TTP/HUS ... tubular necrosis (causes
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
Kidney Injury (AKI ... Differential Diagnosis Algorithm ... Acute Kidney Injury ... Malignancy Rapidly Progressive ... #Causes
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
• ESR > 50mm/hr ... musculoskeletal systems • Kidneys ... tract, and often causes ... Elevated AST ALT • Hypocomplementemia ... ) • Hypocomplementemic
Hepatorenal Syndrome (HRS)

Definition:
• Functional, potentially reversible kidney impairment.
• Occurs in advanced liver disease: cirrhosis, severe alcoholic
Hepatorenal Syndrome (HRS ... • Caused by splanchnic ... No structural kidney ... Classification: ... Type 1): • Rapid progression
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
Acute Kidney Injury ... - AKI Workup Algorithm ... osmolarity If cause ... Glomerulonephritis / Vasculits ... pressure • TTP / HUS
Monoclonal Gammopathy of Renal Significance (MGRS)

MGRS
• MGRS refers to kidney disease caused by nephrotoxic monoclonal immunoglobulins
disease caused ... guide subtype classification ... tubulopathy) - Complement ... formation causing vasculitis ... function and prevent progression
IGG-4 RELATED DISEASE

WHAT?
 • A chronic, immune-mediated fibroinflammatory disease with tumefactive infiltration of IgG4+ plasma cells
inflammation -> progressive ... aortitis, mimics vasculitis ... • Kidneys: Tubulointerstitial ... - ↑ IgE, ↓ complement ... • Classification