11 results
Summary of characteristic abnormalities of selected glomerular diseases
Light Microscopy (LM) - Immunofluorescence Microscopy (IM) - Electron
(IM) - Electron ... Microscopy (EM) ... RPGN • Anti-GBM ... #nephrology #pathology ... comparison #table #diagnosis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Differential Diagnosis ... polyangiitis, Microscopic ... anti-ANCA ab, anti-GBM ... #differential #diagnosis ... #nephrology
Rapidly Progressive Glomerulonephritis (RPGN) 
 - Loss of kidney function over a short period of tirne
of glomerular disease ... Basement Membrane (GBM ... Linear, ribbon-like GBM ... staining on IF • No EM ... #Nephrology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Autoantibodies and their Disease ... (Diffuse) Anti-Sm ... Microscopic polyangiitis ... Anti-GBM - Goodpasture's ... #diagnosis #table
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
polyangiitis), MPA (microscopic ... life-threatening diseases ... Inflammatory eye disease ... antibody, Anti-GBM ... usually low in anti-GBM
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
- Differential Diagnosis ... proliferative • Anti-GBM ... polyangiitis (GPA) / microscopic ... Minimal change disease ... #Proteinuria #Nephrology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Anti-Sm (Smith) ... Vasculitis: • Microscopic ... + 90% • Anti-GBM ... disease - MPO>PR3 ... Antineutrophil #antibodies #diagnosis
Rhombencephalitis
BACTERIAL
- Listeria (biphasic illness with bulbar dysfunction occurring later)
- Mycobacterium tuberculosis
- Pneumococcus
- Brucella
- Borrelia (Lyme Disease)
-
Viruses (HSV, EBV ... Miller-Fisher GBS ... syndrome - brain stem ... #Differential #Diagnosis ... #Causes #Neurology
Anti-GIomeruIar Basement Membrane Disease (Goodpasture's Disease)

What is it? A small vessel vasculitis with circulating antibodies directed
hemorrhage Diagnosis ... : • Anti-GBM antibodies ... weeks By Tess Litchman ... Goodpastures #AntiGBM #diagnosis ... #nephrology #pulmonary
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... progressing GN • New pulmonary ... PR3-ANCA): • Microscopic ... glomerulonephritis) • Anti-GBM ... Dx: GPA, EGPA, microscopic