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Acute Kidney Injury (AKI) - Differential Diagnosis Framework
Prerenal:
 • Due to true volume loss or decreased
Acute Kidney Injury ... damage to the glomeruli ... tract system • Cellular ... Acute #Kidney #Injury
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
quantify renal injury ... hypercellular glomeruli ... , & cellular crescents
This image shows acellular scanning EM showing glomerular basement membrane duplication at high power in a
This image shows acellular ... scanning EM showing glomerular ... high power in a glomerulus ... membranoproliferative pattern of injury ... membranoproliferative #injury
Kidney Biopsy - Diagnosis Algorithms
1) Normal Glomerulus by LM
2) Glomerular Crescents
3) Double Contours of GBM
4) Endocapillary
Algorithms 1) Normal Glomerulus ... by LM 2) Glomerular
Causes of acute kidney injury (AKI). AKI is classified into pre-renal, renal, and post-renal causes. Renal
of acute kidney injury ... vascular supply; glomerular ... GBM, Glomerular ... Acute #Kidney #Injury
Spectrum of Glomerular Diseases
Nephrotic - Mechanism:
 • Injury to podocytes
 • Changed architecture: Scanning. Deposition of
Spectrum of Glomerular ... Mechanism: • Injury ... formation #Glomerular
This image shows acellular scanning EM with normal glomerular tuft at top and segmental necrosis at
This image shows acellular ... EM with normal glomerular ... #necrosis #glomerular ... #tuft #glomerulus
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
• Calculi Glomerular ... benign sediment (injury ... epithelial side of glomerular ... active sediment (injury ... ) proteinuria (injury
Causes of Acute Kidney Injury - Differential Diagnosis Framework 
Pre-Renal
Post-Renal
Intrinsic Renal:
 • Tubules (ATN)
 • Glomerular:
of Acute Kidney Injury ... Tubules (ATN) • Glomerular
Glomerular Tuft on Electron Microscopy

This eyeSCANdy image shows acellular scanning EM of a normal glomerular tuft
Glomerular Tuft ... eyeSCANdy image shows acellular ... EM of a normal glomerular ... @arkanalabs #glomerulus ... #glomerular #tuft