15 results
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pulmonary Renal ... for Pulmonary Renal ... polyangiitis, Microscopic ... ab, anti-GBM ab ... #nephrology
Summary of characteristic abnormalities of selected glomerular diseases
Light Microscopy (LM) - Immunofluorescence Microscopy (IM) - Electron
(IM) - Electron ... Microscopy (EM) ... Amyloid RPGN • Anti-GBM ... #nephrology #pathology ... comparison #table #diagnosis
Systemic Sclerosis Associated Autoantibodies
Anti-topoisomerase I (anti-Sc170): Diffuse skin disease, Pulmonary fibrosis
Anti-centromere: Limited skin disease (~93-95%), Pulmonary
Diffuse skin disease ... , Pulmonary fibrosis ... III: Diffuse, Renal ... , Overlap BCM IM ... Autoantibodies #diagnosis
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Pulmonary Renal ... life-threatening diseases ... Inflammatory eye disease ... ANCA antibody, Anti-GBM ... usually low in anti-GBM
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
Pulmonary Renal ... - Differential Diagnosis ... Vasculitis - Anti-GBM ... Positive (ANCA + anti-GBM ... #Differential #Diagnosis
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Vasculitis: • Microscopic ... polyangiitis without renal ... ANCA+ 30-60% • Renal-limited ... ANCA+ 90% • Anti-GBM ... Antineutrophil #antibodies #diagnosis
Acute Kidney Injury (AKI) - Differential Diagnosis Framework

PRE-Renal AKI:
 • Hypovolemia
 • Congestion
 • Medications
 •
- Differential Diagnosis ... Immune-complex disease ... , Anti-GBM • Tubular ... #Differential #Diagnosis ... #nephrology
Acute Kidney Injury - AKI Workup Algorithm and Differential Diagnosis
Baseline Investigations: full blood count with differential,
and Differential Diagnosis ... dipstick, urine microscopy ... Vasculits: ANCA, ANA, Anti-GBM ... , Anti-ds-DNA, C3 ... #nephrology #causes
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
polyangiitis (GPA), microscopic ... polyangiitis without renal ... 90%, rarely PR3 Anti-GBM ... disease - MPO>PR3 ... PANCA #MPO #PR3 #Diagnosis
Causes of Acute Kidney Injury (AKI) - Differential Diagnosis Algorithm
Acute Kidney Injury (AKI) - Acute increase
- Differential Diagnosis ... at least 50% Renal ... Glomerulonephritis • Anti-GBM ... polyangiitis /microscopic ... #KidneyInjury #Nephrology